HP 6600/HSR6600 Routers Interface Configuration Guide Part number: 5998-1499 Software version: A6602-CMW520-R3103 A6600-CMW520-R3102-RPE A6600-CMW520-R3102-RSE HSR6602_MCP-CMW520-R3102 Document version: 6PW103-20130628
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Contents Configuring Ethernet interfaces ··································································································································· 1 Overview············································································································································································ 1 Performing general configurations ························································································································
Configuring error packets diffusion restraint ······································································································ 28 Displaying and maintaining CE1 interfaces ······································································································· 28 Configuring a CT1 interface ········································································································································· 29 Configuring a CT1 interface in CT1 mode ··
Configuring an E1 channel ··········································································································································· 61 Configuring a T1 channel ············································································································································· 62 Configuring an E3 channel ··········································································································································· 63 Conf
Configuring Ethernet interfaces All configuration tasks in this chapter are independent and optional. You can perform these configuration tasks in any order. Overview Ethernet is the most widespread wired LAN technology due to its flexibility, simplicity, and easy implementation. Your device supports the following types of Ethernet interfaces: • Layer 2 Ethernet interfaces—Physical Ethernet interfaces operating at the data link layer (Layer 2) to forward traffic within a subnet between hosts.
Use the display interface command to determine whether the fiber port or copper port of the combo interface is active. If the current port is the copper port, the output includes "Media type is twisted pair." If the current port is the fiber port, the output includes "Media type is optical fiber." You can use the display this command in combo interface view to determine whether the fiber port or copper port of the combo interface is active.
Step Command Remarks 1. Enter system view. system-view N/A 2. Enter 10-GE interface view. interface ten-gigabitethernet interface-number N/A 3. Configure the 10-GE interface to operate in LAN or WAN mode. port-mode { lan | wan } Configure the J0 or J1 byte when the 10-GE interface is operating in WAN mode. flag { j0 | j1 } sdh flag-value 4. Optional. By default, a 10-GE interface operates in LAN mode. Optional. By default, the value of the J0 and J1 bytes is 0.
Step Command Remarks Optional. 4. Set the duplex mode of the interface. duplex { auto | full | half } By default, the duplex mode is full for 10-GE interfaces, and is auto for other Ethernet interfaces. Fiber ports do not support the half keyword. Optional. 5. Set the port speed. speed { 10 | 100 | 1000 | auto } The default setting is auto. 6. Set the intended bandwidth for the interface. bandwidth bandwidth-value Optional. Fiber ports do not support the 10 or 100 keyword.
You might need to shut down and then bring up an Ethernet interface or subinterface to activate some configuration changes, for example, the speed or duplex mode changes. To shut down an Ethernet interface or subinterface: Step Enter system view. 1. Command Remarks system-view N/A • Enter Ethernet interface view: interface interface-type interface-number Enter Ethernet interface or subinterface view, or port group view. 2.
External loopback testing—Tests hardware of Ethernet interfaces. To perform external loopback testing on an Ethernet interface, connect a loopback plug to the Ethernet interface. The device sends test packets out of the interface, which are expected to loop over the plug and back to the interface. If the interface fails to receive any test packets, the hardware of the interface is faulty.
Configuration procedure To change the link mode of the specified Ethernet interfaces in system view: Step Command 1. Enter system view. system-view 2. Change the link mode of the specified Ethernet interfaces. port link-mode { bridge | route } interface-list To change the link mode of an Ethernet interface: Step Command 1. Enter system view. system-view 2. Enter Ethernet interface view. interface interface-type interface-number 3. Change the link mode of the Ethernet interface.
Step Command Remarks 1. Enter system view. system-view N/A 2. Enter Ethernet interface view. interface interface-type interface-number N/A 3. Enable subinterface rate statistics collection on the Ethernet interface. sub-interface rate-statistic By default, subinterface rate statistics collection is disabled. Configuring a Layer 2 Ethernet interface The features in this section are supported on only SAP modules that are operating in bridge mode.
You create port groups manually. All settings made for a port group apply to all member ports of the group. For example, you can configure a traffic suppression threshold (see "Configuring storm suppression") for multiple interfaces in bulk by assigning these interfaces to a port group. Even though the settings are made on the port group, they are saved on each interface basis rather than on a port group basis.
To avoid congestion on GigabitEthernet 1/0/4, set 100 Mbps as the only option available for speed negotiation on port GigabitEthernet 1/0/1, GigabitEthernet 1/0/2, and GigabitEthernet 1/0/3. As a result, the transmission rate on each port connected to a server is limited to 100 Mbps. To set speed options for auto negotiation on an Ethernet interface: Step Command 1. Enter system view. system-view 2. Enter Ethernet interface view. interface interface-type interface-number 3.
Step 3. 4. 5. Command Remarks Set the broadcast suppression threshold ratio. broadcast-suppression { ratio | pps max-pps | kbps max-kbps } Optional. Set the multicast suppression threshold ratio. multicast-suppression { ratio | pps max-pps | kbps max-kbps } Optional. Set the unknown unicast suppression threshold ratio. unicast-suppression { ratio | pps max-pps | kbps max-kbps } Optional. By default, broadcast traffic is allowed to pass through an interface.
Figure 2 Single-port loopback Figure 3 Multi-port loopback You can enable loopback detection to detect loops on an interface and, if the interface supports the loopback-detection action command, configure the protective action to take on the receiving interface when a loop is detected, for example, to shut down the interface. Depending on whether a protective action is configured, the device takes the actions in Table 1 to alleviate the impact of the loop condition.
• To enable a hybrid or trunk port to take the administratively specified protective action, you must use the loopback-detection control enable command on the port. • When you change the link type of an Ethernet interface by using the port link-type command, the switch removes the protective action configured on the interface. For more information about the port link-type command, see Layer 2—LAN Switching Command Reference.
Setting the MDI mode of an Ethernet interface IMPORTANT: Fiber ports do not support the MDI mode setting. You can use both crossover and straight-through Ethernet cables to connect copper Ethernet interfaces.
You can test the cable connection of an Ethernet interface for a short or open circuit. The device displays cable test results within 5 seconds. If any fault is detected, the test results include the length of the faulty cable segment. To test the cable connection of an Ethernet interface: Step Command 1. Enter system view. system-view 2. Enter Ethernet interface view. interface interface-type interface-number 3. Test the cable connected to the Ethernet interface.
Step Command Remarks Optional. Set the traffic polling interval of the storm control module. storm-constrain interval seconds 3. Enter Ethernet interface view. interface interface-type interface-number N/A 4. Enable storm control, and set the lower and upper thresholds for broadcast, multicast, or unknown unicast traffic. storm-constrain { broadcast | multicast | unicast } { pps | kbps | ratio } max-pps-values min-pps-values By default, storm control is disabled. 2.
Setting the MTU for an Ethernet interface or subinterface The value of Maximum Transmission Unit (MTU) affects the fragmentation and re-assembly of IP packets. To set the MTU for an Ethernet interface or subinterface: Step Command Remarks 1. Enter system view. system-view N/A 2. Enter Ethernet interface or subinterface view. interface interface-type { interface-number | interface-number.subnumber } N/A 3. Set the MTU. mtu size The default setting is 1500.
Task Command Remarks Display traffic statistics for the specified interfaces. display counters { inbound | outbound } interface [ interface-type ] [ | { begin | exclude | include } regular-expression ] Available in any view. Display traffic rate statistics over the last sampling interval. display counters rate { inbound | outbound } interface [ interface-type ] [ | { begin | exclude | include } regular-expression ] Available in any view.
Configuring ATM interfaces ATM interface ATM Asynchronous Transfer Mode (ATM) is a backbone network technology for transmission of audio, video, and data. By virtue of its flexibility and support for multimedia services, ATM is regarded as a core technology for implementing broadband communications. The ATM physical layer lies at the bottom of the ATM reference model. Though it involves specific transmission media, its functionality does not rely on the transmission mechanism and speed of a specific medium.
IMA This section describes physical parameter configuration of ATM E1/T1 interfaces. For more information (including the configuration of PVCs), see Layer 2—WAN Configuration Guide. Configuring an ATM E1/T1 interface Step Command Remarks 1. Enter system view. system-view N/A 2. Enter ATM E1/T1 interface view. interface atm interface-number N/A 3. Set the clock mode. clock { master | slave } 4. Enable automatic clock mode change. clock-change auto Set the framing format.
NOTE: E1 configurations are supported on the IMA (E1) interface module and T1 configurations on the IMA (T1) interface module. Troubleshooting ATM E1/T1 interfaces You can start troubleshooting an ATM interface by testing network connectivity using the ping command or the extended ping command. In an extended ping command, specify some options in the IP header. For more information about the ping command, see Network Management and Monitoring Configuration Guide.
Step Command Remarks Optional. 7. Set the loopback mode. loopback { cell | local | remote } 8. Set the intended bandwidth for the ATM OC-3c/STM-1 interface. bandwidth bandwidth-value Optional. Restore the default settings for the ATM OC-3c/STM-1 interface. default Optional. 9. Loopback is disabled by default. Displaying and maintaining ATM interfaces Task Display information about a specified or all ATM interfaces.
Configuring WAN interfaces In terms of link type, wide area networks (WANs) include Frame Relay (FR) and ATM. Routers are designed with the synchronous serial interface, ATM interface, and CE1 interface. The system supports the synchronous serial interface, CE1 interface, CT1 interface, CE3 interface, and CT3 interface. Configuring a synchronous serial interface A synchronous serial interface has the following features: • Works in either DTE or DCE mode.
Step Command Remarks • On DTE side: 7. Set the clock selection mode. clock { dteclk1 | dteclk2 | dteclk3 | dteclk4 | dteclkauto } • On DCE side: clock { dceclk1 | dceclk2 | dceclk3 } 8. 9. Set transmit-clock or receive-clock signal inversion on the DTE side. invert { transmit-clock | receive-clock } Set the MTU. mtu size Optional. The default is dceclk1 for DCE side and dteclk1 for DTE side. Optional. Disabled by default. Optional. The default is 1500 bytes. Optional. 10. Set the CRC mode.
Enabling subinterface rate statistics collection on a serial interface CAUTION: Use this function with caution, because it is system resource demanding. After enabling subinterface rate statistics collection on a serial interface, the device periodically refreshes the rate statistics for the subinterfaces of the serial interface. You can use the display interface command to view the rate statistics.
into multiple channel sets and each set can be used as an interface upon timeslot bundling. Its logical features are the same as those of a synchronous serial interface. It supports link layer protocols such as PPP, HDLC, and FR, and network protocol IP. Configuring a CE1 interface in E1 mode Step Command Remarks 1. Enter system view. system-view N/A 2. Enter CE1 interface view. controller e1 number N/A 3. Configure the interface to operate in E1 mode.
Configuring other CE1 interface parameters Step Command Remarks 1. Enter system view. system-view N/A 2. Enter CE1 interface view. controller e1 number N/A 3. Configure the interface description. description text 4. Set the physical state change suppression interval on the CE 1 interface. link-delay delay-time Optional. By default, the description of an interface is interface-name Interface. By default, physical state change suppression is disabled. Optional. 5. Set the line code format.
Step Command 18. Enter the view of the synchronous serial interface created on the CE1 interface. 19. Set the CRC mode. Remarks interface serial interface-number:set-number or N/A interface serial interface-number:15 Optional. crc { 16 | 32 | none } By default, 16-bit CRC is adopted. Configuring error packets diffusion restraint Error packets diffusion occurs when the error packet received on one timeslot spreads to other timeslots.
Configuring a CT1 interface A CT1 interface can operate only in channelized mode. When it is working as a CT1 interface, all the timeslots (numbered 1 to 24) can be randomly divided into groups. Each of these groups can form one channel set for which the system automatically creates an interface logically equivalent to a synchronous serial interface. This interface supports link layer protocols such as PPP, HDLC, and FR, and network protocol IP.
Step Command 6. Set the line code format. code { ami | b8zs } 7. Set the clock mode. clock { master | slave } 8. Set the framing format. frame-format { sf | esf } Remarks Optional. The default is B8ZS1. Optional. The default is slave, which is line clock. Optional. The default is ESF. Optional. 9. Enable RAI detection on the interface. alarm detect rai 10. Enable user data inversion. data-coding { normal | inverted } 11. Set the line idle code type. idlecode { 7e | ff } 12.
Step Command 19. Shut down the CT1/PRI interface. shutdown 20. Return to system view quit 21. Enter the view of the synchronous serial interface created on the CT1 interface. 22. Set the CRC mode. Remarks Optional. A CT1 interface is up by default. N/A interface serial interface-number:set-number or N/A interface serial interface-number:23 crc { 16 | 32 | none } Optional. By default, 16-bit CRC is adopted.. Note: 1. B8ZS = Bipolar 8 zero substitution; 2. ESF = Extended super frame; 3.
Step Command Remarks 1. Enter system view. system-view N/A 2. Enable error packets diffusion restraint. error-diffusion restraint enable N/A 3. Configure error packets diffusion restraint parameters. error-diffusion restraint config detect-timer renew-timer threshold Optional. By default, the detect-timer is 30 seconds, the renew-timer is 600 seconds, and the PER threshold is 20%. Displaying and maintaining CT1 interfaces Task Command Remarks Display the status of a CT1 interface.
Step Command Remarks N/A 2. Enter E1-F interface view. interface serial interface-number 3. Configure the interface to operate in framed mode. undo fe1 unframed 4. Bundle timeslots on the interface. fe1 timeslot-list list 5. Enable RAI detection on the interface. fe1 alarm detect rai Set other interface parameters. See "Configuring other E1-F interface parameters." 6. Optional. The default is framed mode. Optional. If no timeslot range is specified, all timeslots are bundled by default.
Step Command Remarks Optional. 7. Set the cable type. fe1 cable { long | short } 8. Configure the CRC mode. crc { 16 | 32 | none } 9. Enable AIS test. fe1 detect-ais The long keyword applies by default. Optional. 16-bit CRC by default. Optional. By default, AIS test is performed. Optional. 10. Set the framing format. fe1 frame-format { crc4 | no-crc4 } 11. Set the line idle code type. fe1 idlecode { 7e | ff } 12. Set the interframe filling tag type. fe1 itf type { 7e | ff } 13.
Step 3. Command Configure error packets diffusion restraint parameters. error-diffusion restraint config detect-timer renew-timer threshold Remarks Optional. By default, the detect-timer is 30 seconds, the renew-timer is 600 seconds, and the PER threshold is 20%. Displaying and maintaining E1-F interfaces Task Command Remarks Display the configuration and status of a specified or all E1-F interfaces.
Step Command Remarks If no timeslot range is specified, all timeslots are bundled into one channel set. Bundle timeslots on the interface into a channel set. ft1 timeslot-list list [ speed { 56k | 64k } ] 5. Set the cable length and attenuation. ft1 cable { long decibel | short length } 6. Set the line code format. ft1 code { ami | b8zs } 7. Set the clock mode. ft1 clock { master | slave } The default is slave, which is line clock. 8. Enable user data inversion.
Step Command Remarks 16. Set the number of interframe filling tags. ft1 itf number number 17. Enable loopback and set the loopback mode. ft1 loopback { local | remote | payload } 18. Send remote control loopback code. ft1 sendloopcode { fdl-ansi-llb-down | fdl-ansi-llb-up | fdl-ansi-plb-down | fdl-ansi-plb-up | fdl-att-plb-down | fdl-att-plb-up | inband-llb-down | inband-llb-up } 19. Set the intended bandwidth for the T1-F interface. bandwidth bandwidth-value Optional. 20.
To configure error packets diffusion restraint: Step Command Remarks 1. Enter system view. system-view N/A 2. Enable error packets diffusion restraint. error-diffusion restraint enable N/A 3. Configure error packets diffusion restraint parameters. error-diffusion restraint config detect-timer renew-timer threshold Optional. By default, the detect-timer is 30 seconds, the renew-timer is 600 seconds, and the PER threshold is 20%.
Configuring a CE3 interface in E3 mode Step Command Remarks 1. Enter system view. system-view N/A 2. Enter CE3 interface view. controller e3 interface-number N/A 3. Configure the interface to operate in E3 mode. using e3 The default operating mode is CE3 mode. 4. Configure the interface to operate in FE3 mode and set the DSU mode or the subrate. fe3 { dsu-mode { 0 | 1 } | subrate number } 5. Set other interface parameters. See "Configuring other CE3 interface parameters." Optional.
Configuring other CE3 interface parameters Step Command Remarks 1. Enter system view. system-view N/A 2. Enter CE3 interface view. controller e3 interface-number N/A 3. Configure the interface description. description text 4. Set the physical state change suppression interval on the CE 3 interface. link-delay delay-time Optional. 5. Configure the CE3 interface to perform BERT test, and configure the CE3 interface to perform BERT test on an E1 channel created on the interface.
Displaying and maintaining CE3 interfaces Task Command Remarks Display the state information of a CE3 interface. display controller e3 [ interface-number ] [ | { begin | exclude | include } regular-expression ] Available in any view. Display the configuration and state of a serial interface formed on a CE3 interface. display interface serial interface-number [ | { begin | exclude | include } regular-expression ] Available in any view. Clear the controller counter of a CE3 interface.
be created on a CT3 interface in CT3 mode is either M × 1.536 Mbps (where M ranges from 1 to 28) or N × 56 kbps or N x 64 kbps (where N ranges from 1 to 300). When a T1 line is working in unframed (T1) mode, the system automatically creates a serial interface named serial number/line-number:0 for it. This interface operates at 1544 kbps and is logically equivalent to a synchronous serial interface where you can make other configurations.
Step Command Remarks • Set the operating mode to unframed (T1) mode: t1 line-number unframed • Set the operating mode to 4. Set the operating mode of a T1 line on the CT3 interface to unframed mode or framed mode. framed (CT1) mode and bundle timeslots on the CT1 interface: a. (Optional) undo t1 line-number unframed By default, T1 lines are operating in framed mode, no channel sets exist, and the timeslot speed is 64 kbps. b.
Step Command Remarks • On the CT3 interface: loopback { local | payload | remote } 8. Set the loopback mode. • On a T1 line: t1 line-number set loopback.{ local | payload | remote } • On the CT3 interface: frame-format { c-bit | m23 } 9. Set the framing format. • On a T1 line: t1 line-number set frame-format { esf | sf } Optional. Loopback is disabled by default. Optional. By default: • The framing format on the CT3 interface is C-bit. • The framing format on the T1 line is ESF.
Step Command Remarks Optional. By default, FDL is disabled. 15. Set the FDL format for a T1 channel. t1 line-number set fdl { ansi | att | both | none } This operation applies only to T1 channels that are formed on CT3 interfaces, operate in channelized mode, and use ESF as the T1 framing format. 16. Set the intended bandwidth for the CT3 interface. bandwidth bandwidth-value Optional. 17. Restore the default settings for the CT3 interface. default Optional.
Task Command Remarks Available in CT3 interface view. Shut down a T1 line. t1 line-number shutdown Bring up a T1 line. undo t1 line-number shutdown CAUTION: Make sure you are fully aware of the impact of the shutdown action on your network. Available in CT3 interface view.
Configuring POS interfaces Overview SONET Synchronous Optical Network (SONET), a synchronous transmission system defined by the ANSI, is an international standard transmission protocol. It adopts optical transmission. SDH Synchronous Digital Hierarchy (SDH), defined by the CCITT (today’s ITU-T), uses a SONET rate subset. SDH adopts synchronous multiplexing and allows for flexible mapping structure.
Step Command Remarks Optional. 3. Set the interface description. description text 4. Set the clock mode. clock { master | slave } 5. Set the CRC length. crc { 16 | 32 } 6. Set the loopback mode. loopback { local | remote } By default, the description of a POS interface is interface name Interface, for example, POS1/2/0 Interface. Optional. The default is slave. Optional. The default is 32 bits. Optional. Loopback is disabled by default. Optional. By default: • The C2 overhead byte is 7.
Step Command Remarks 15. Set the intended bandwidth for the POS interface. bandwidth bandwidth-value Optional. 16. Restore the default settings for the POS interface. default Optional. Optional. By default, a POS interface is up. 17. Shut down the POS interface. When you modify parameters on a POS interface, execute the shutdown command, and then the undo shutdown command to make your modifications take effect.
Displaying and maintaining POS interfaces Task Display information about one or all POS interfaces. Clear statistics of one or all POS interfaces. Command Remarks display interface [ pos ] [ brief [ down ] ] [ | { begin | exclude | include } regular-expression ] display interface pos interface-number [ brief ] [ | { begin | exclude | include } regular-expression ] reset counters interface [ pos [ interface-number ] ] Available in any view. Available in user view.
[RouterB-Pos2/1/0] mtu 1500 [RouterB-Pos2/1/0] shutdown [RouterB-Pos2/1/0] undo shutdown Verifying the configuration Check the interface connectivity between the POS interfaces with the display interface pos command and test network connectivity with the ping command. Connecting routers through POS interfaces across frame relay Network requirements As shown in Figure 5, connect routers to a public frame relay network through POS interfaces.
[RouterA-Pos2/1/0.2] fr map ip 20.10.10.2 60 [RouterA-Pos2/1/0.2] mtu 1500 [RouterA-Pos2/1/0.2] quit 2. Configure Router B: # Configure interface POS 2/1/0. [RouterB] interface pos 2/1/0 [RouterB-Pos2/1/0] clock slave # Configure frame relay encapsulation on the interface. [RouterB-Pos2/1/0] link-protocol fr [RouterB-Pos2/1/0] fr interface-type dte [RouterB-Pos2/1/0] ip address 10.10.10.2 255.255.255.0 [RouterB-Pos2/1/0] fr dlci 70 [RouterB-Pos2/1/0] fr map ip 10.10.10.
Solution Check that the correct clock mode is configured on the POS interface. If not, enormous amount of CRC errors can be generated.
Configuring CPOS interfaces Overview SONET/SDH Synchronous Optical Network (SONET), a synchronous transmission system defined by the American National Standards Institute (ANSI), is an international standard transmission protocol. It adopts optical transmission. Synchronous Digital Hierarchy (SDH) is defined by the Consultative Committee for International Telegraph and Telephone (CCITT), today’s Telecommunication Standardization Sector of the International Telecommunication Union (ITU-T).
Figure 6 STM-N frame structure STM-N is a rectangle-block frame structure of 9 rows x 270 x N columns, where the N in STM-N equals the N columns. N takes the value 1, 4, 16, and so on, indicating the number of STM-1 signals that form SDH signal. The STM-N frame structure consists of three parts: the section overhead (SOH), which includes the regenerator section overhead (RSOH) and the multiplex section overhead (MSOH); the administration unit pointer (AU-PTR); and payload.
Figure 7 Process of multiplexing E1 channels to form STM-1 Figure 8 Process of multiplexing T1 channels to form STM-1 STM-1 ×1 AUG-1 ×1 AU-4 VC-4 Mapping TUG-3 ×7 ×3 AU-3 ×3 VC-3 ×7 TUG-2 ×4 C-11 TU-11 VC-11 Aligning Multiplexing C-11: 1.
Figure 10 Process of multiplexing T3 channels to form STM-1 In actual applications, different countries and regions might adopt different multiplexing structures. To ensure interoperability, the multiplex mode command is provided on CPOS interfaces. This allows you to select the AU-3 or AU-4 multiplexing structure. Calculating E1/T1/E3/T3 channel sequence numbers Since CPOS interfaces adopt the byte interleaved multiplexing mode, the lower-order VCs are not arranged in order in a higher-order VC.
You can calculate TU-12 numbers in the same way when the AU-3 path is used. When 63 E1 channels or 84 T1 channels are configured on a CPOS interface, you can reference E1 or T1 channels by referencing the numbers in the range of 1 to 63 or 1 to 84. When connecting your device to channelized STM-1 interfaces on devices of other vendors, you should consider the possible numbering differences due to different channel referencing methods.
Similar to the J0 byte, the higher-order VC-N path trace byte J1 is included in the higher-order path overhead to repeatedly send the higher-order path access point identifier, based on which the receiving end of the path can make sure it is in continuous connection with the specified sender. The sender and the recipient must use the same J1 byte.
To configure a CPOS interface: Step Command Remarks 1. Enter system view. system-view N/A 2. Enter CPOS interface view. controller cpos cpos-number N/A Optional. 3. Set the interface description. description text 4. Set the framing format. frame-format { sdh | sonet } 5. Set the clock mode. clock { master | slave } 6. Set the loopback mode. loopback { local | remote } 7. Configure the AUG multiplexing mode. 8. 9.
Step Command Remarks • See "Configuring an E1 channel." • See "Configuring a T1 14. Configure E1/T1/E3/T3 channel attributes. channel." • See "Configuring an E3 Optional. channel." • See "Configuring a T3 channel." Configuring an E1 channel Step Command Remarks 1. Enter system view. system-view N/A 2. Enter CPOS interface view. controller cpos cpos-number N/A 3. Set the framing format for E1. e1 e1-number set frame-format { crc4 | no-crc4 } Optional. 4. Set the clock mode for E1.
Step Command Remarks Optional. 9. Configure the bundling mode of the serial interface formed by bundling the timeslots of the E1 channel. By default, the hardware bundling mode is adopted. ppp mp soft-binding undo ppp mp soft-binding The HIM-CL1P and HIM-CL2P interface modules do not support cross-port hardware MP bundling. On these interface modules, you can use software bundling to meet cross-port MP requirements. NOTE: E1 configuration is supported on the CPOS (E) interface module.
Step 8. Command Shut down the specified T1 channel. t1 t1-number shutdown Remarks Optional. By default, a T1 channel is up. Optional. 9. Configure the bundling mode of the serial interface formed by bundling the timeslots of the T1 channel. By default, the hardware bundling mode is adopted. ppp mp soft-binding undo ppp mp soft-binding The HIM-CL1P and HIM-CL2P interface modules do not support cross-port hardware MP bundling.
Step 9. Set the national bit of the E3 channel. 10. Shut down the E3 channel. Command Remarks e3 e3-number set national-bit { 0 | 1} Optional. e3 e3-number shutdown 1 by default. Optional. Up by default. Configuring a T3 channel Step Command Remarks 1. Enter system view. system-view N/A 2. Enter CPOS interface view. controller cpos cpos-number N/A 3. Create a serial interface corresponding to the unframed T3 channel. using t3 t3-number 4.
Step Command Remarks 12. Configure overhead bytes for VC-4 frames. flag vc-4 path-number { c2 c2-value | j1 { sdh sdh-string | sonet sonet-string } | s1s0 s1s0-value } Optional. Optional. 13. Configure the specified T3 channel to operate in FT3 mode and configure a DSU mode or subrate for the FT3 channel. ft3 t3-number { dsu-mode { 0 | 1 | 2 | 3 | 4 } | subrate sub-number } For an FT3 channel, the default DSU mode is 0 (Digital Link) and the default subrate is 44210 kbps.
For more information about the display interface serial command, see Interface Command Reference. CPOS interface configuration examples CPOS-E1 interface configuration example Network requirements As shown in Figure 14, branch nodes Router B through Router H are uplinked to the central node Router A through E1 links and Router A aggregate these E1 links with a CPOS interface. Add one more E1 link on Router B to expand its capacity. In addition, bind the two E1 links through an MP-group interface.
2. Configure Router B: The configuration on Router B is similar to that of other branch nodes. system-view [RouterB] controller e1 2/0/1 [RouterB-E1 2/0/1] using e1 [RouterB-E1 2/0/1] quit [RouterB] controller e1 2/0/2 [RouterB-E1 2/0/2] using e1 [RouterB-E1 2/0/2] quit # Create MP-group 1 and assign an IP address to it. [RouterB] interface mp-group 1 [RouterB-Mp-group1] ip address 10.1.1.2 24 [RouterB-Mp-group1] quit # Configure Serial 2/0/1:0 and Serial2/0/2:0 and assign them to MP-group 1.
Configuration procedure When connecting the device to a SONET/SDH device, configure the clock mode of the SONET/SDH device as master, because the clock source of a SONET/SDH network is more precise than the internal clock source of the device. 1. Configure Router A: # Configure the E3 channels of CPOS interface CPOS 2/0/0 to operate in unframed mode.
Solution The fault is very likely caused if the multiplex unit configurations on the SDH transmission device mismatch the E1 channel numbers on the CPOS interface on your device. This can result in timeslot inconsistency at the two ends of transmission and also PPP negotiation failures and LCP anomalies. Besides, if an idle timeslot on a loopback serial interface on the transmission device is used in transmission, the information that loopback is detected is displayed.
Configuring E-CPOS interfaces Overview SONET Synchronous Optical Network (SONET), a synchronous transmission system defined by the ANSI, is an international standard transmission protocol over fiber-optic. SONET transmission rates form a sequence of OC-1 (51.84 Mbps), OC-3 (155 Mbps), OC-12 (622 Mbps), and OC-48 (2.5 Gbps). Because signals are synchronous, SONET can multiplex signals conveniently. SDH Synchronous Digital Hierarchy (SDH), defined by the CCITT (today’s ITU-T) uses a SONET rate subset.
Multiplexing STM frames An STM-1 frame adopts the rectangular structure of 270 columns and 9 rows, with the first 10 columns as the overhead and the rest 260 columns as the payload. An STM-N frame is formed by interleaving N STM-1 frames. Figure 17 STM-1 frame structure • SOH—The SDH section overhead. It is used for monitoring the entire STM-1 frame and does not carry user data. The SOH consists of the regenerator section overhead (RSOH) and the multiplex section overhead (MSOH).
Figure 18 Process of multiplexing four STM-1 frames into an STM-4 frame The recipient will demultiplex a received STM-4 frame into four STM-1 frames. During the multiplexing process, the A1, A2, J0, Z0, B1, E1, F1, D1, D2, and D3 fields in the RSOH of the first frame are multiplexed into the STM-4 frame while those of the rest three frames are treated as invalid. The other fields of each frame are multiplexed into the STM-4 frame separately.
SONET SDH Rate STS-12 STM-4 622.080 Mbps STS-48 STM-16 2488.320 Mbps Overhead bytes SDH provides hierarchical monitoring and management functions. It provides section level monitoring and path level monitoring. Section level monitoring is subdivided into regenerator section level monitoring and multiplex section level monitoring, while the path level monitoring is subdivided into higher-order path level monitoring and lower-order path level monitoring.
• Tributary unit (TU) and tributary unit group (TUG)—TU is the information structure that provides adaptation between higher-order paths and lower-order paths. TUG is a set of one or more TUs whose locations are fixed in higher-order VC payload. • Administrative unit (AU) and administrative unit group (AUG)—AU is the information structure that provides adaptation between the higher-order path layer and the multiplex section layer.
Figure 20 Network diagram for an E-CPOS application In actual applications, the connection between these low-end routers and the E-POS interfaces might span more than one transmission network and as such, might require relay. This is similar to the scenario where low-end devices are connected to Router A through one or multiple E3/T3 leased lines.
Step Command 5. Configure the clocking mode. clock { master | slave } 6. Configure the loopback mode. loopback { local | remote } 7. Configure the J0 byte. flag j0 { sdh j0-string | sonet j0-value } 8. Configure the signal degrade (SD) alarm threshold and signal fail (SF) alarm threshold. 9. Set the physical state change suppression interval. Remarks Optional. Slave clocking mode by default. Optional. Disabled by default. Optional. Optional.
Configuring the interface/channel operating mode on a 2.5 Gbps E-CPOS interface You can use the using command to configure a 2.5 Gbps E-CPOS interface to operate in channelized mode or concatenated mode. To create POS channels, configure the concatenated mode. On a 2.5 Gbps E-CPOS interface in concatenated mode, you can create sixteen 155 Mbps channels, four 622 Mbps channels, or one 2.5 Gbps POS channel. 1.
Configuring the interface/channel operating mode on a 622 Mbps E-CPOS interface Use the using command to configure a 622 Mbps E-CPOS interface to operate in channelized mode or concatenated mode. To create POS channels, configure the concatenated mode. On a 622 Mbps E-CPOS interface in concatenated mode, you can create four 155 Mbps or one 622 Mbps POS interface. 1.
Displaying and maintaining E-CPOS interfaces Task Command Remarks Display information about all channels of the specified E-CPOS interface. display controller e-cpos [ e-cpos-number ] [ | { begin | exclude | include } regular-expression ] Available in any view. Display information about the E3/T3 channels of the specified E-CPOS interface. display interface serial interface-number [ | { begin | exclude | include } regular-expression ] Available in any view.
Figure 21 Network diagram Configuration procedure 1. Configure Router A: # Configure the clock mode of interface E-CPOS 2/0/0. system-view [RouterA] controller e-cpos 2/0/0 [RouterA-E-Cpos2/0/0] clock master # Create two 155 Mbps POS interfaces on interface E-CPOS 2/0/0.
[RouterB-E-Cpos2/0/0-oc-3-2] using oc-3c [RouterB-E-Cpos2/0/0-oc-3-2] quit [RouterB-E-Cpos2/0/0] quit # Configure channelized interface POS 2/0/0/1:0. [RouterB] interface pos2/0/0/1:0 [RouterB-pos2/0/0/1:0] ip address 10.110.4.2 255.255.255.0 [RouterB-pos2/0/0/1:0] mtu 9200 [RouterB-pos2/0/0/1:0] quit # Configure channelized interface POS 2/0/0/2:0. [RouterB] interface pos2/0/0/2:0 [RouterB-pos2/0/0/2:0] ip address 10.110.6.1 255.255.255.0 [RouterB-pos2/0/0/2:0] mtu 9200 [RouterB-pos2/0/0/2:0] quit 3.
Configuration procedure 1. Configure Router A: # Configure the clock mode of interface E-CPOS 2/0/0. system-view [RouterA] controller e-cpos 2/0/0 [RouterA-E-Cpos2/0/0] clock master # Create two 155 Mbps POS interfaces on interface E-CPOS 2/0/0. [RouterA-E-Cpos2/0/0] oc-12 4 [RouterA-E-Cpos2/0/0-oc-12-4] oc-3 4 [RouterA-E-Cpos2/0/0-oc-12-4-oc-3-4] using oc-3c # Configure channelized interface POS 2/0/0/4/4:0.
You can use the display interface pos interface-number command to display the multiplexing path and PPP link negotiation information of the specified POS interface. Depending on the device model, an interface can be in one of the following states: • Pos2/0/0/1:0 current state: Administratively DOWN, Line protocol current state: DOWN, indicating that the interface is administratively shut down.
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Configuring loopback and null interfaces Configuring a loopback interface Introduction A loopback interface is a virtual interface. The physical layer state and link layer protocols of a loopback interface are always up unless the loopback interface is manually shut down. A loopback interface is widely used in the following scenarios: • A loopback interface address can be configured as the source address of the IP packets that the device generates.
You can configure settings such as IP addresses and IP routes on loopback interfaces. For more information, see Layer 3—IP Services Configuration Guide and Layer 3—IP Routing Configuration Guide. Configuring the null interface Introduction A null interface is a completely software-based logical interface, and is always up. However, you cannot use it to forward data packets or configure an IP address or link layer protocol on it.
Displaying and maintaining loopback and null interfaces Task Display information about loopback interfaces. Display information about the null interface.
Support and other resources Contacting HP For worldwide technical support information, see the HP support website: http://www.hp.
Conventions This section describes the conventions used in this documentation set. Command conventions Convention Description Boldface Bold text represents commands and keywords that you enter literally as shown. Italic Italic text represents arguments that you replace with actual values. [] Square brackets enclose syntax choices (keywords or arguments) that are optional. { x | y | ... } Braces enclose a set of required syntax choices separated by vertical bars, from which you select one.
Network topology icons Represents a generic network device, such as a router, switch, or firewall. Represents a routing-capable device, such as a router or Layer 3 switch. Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports Layer 2 forwarding and other Layer 2 features. Represents an access controller, a unified wired-WLAN module, or the switching engine on a unified wired-WLAN switch. Represents an access point.
Index ACDEIOPRT Displaying and maintaining ATM interfaces,22 A Displaying and maintaining CPOS interfaces,65 ATM interface,19 Displaying and maintaining E-CPOS interfaces,79 C Displaying and maintaining loopback and null interfaces,87 Configuring a CE1 interface,25 Displaying and maintaining POS interfaces,50 Configuring a CE3 interface,38 Configuring a CPOS interface,59 Displaying and maintaining serial interfaces,25 Configuring a CT1 interface,29 E Configuring a CT3 interface,41 E-CPOS inter
