Lancast® CenturyStack® 8100 Managed Hub 10/100Mbps Network Management Guide
© 1998-1999 METRObility Optical Systems, Inc. All rights reserved. Printed in USA. This publication is protected by the copyright laws of the United States and other countries, with all rights reserved.
Table of Contents Managed CenturyStack® 10/100Mbps Hub Network Management Guide Introduction ............................................................................................... 7 Overview of Managed CenturyStack 8100 Hub ........................ 7 Network Management ................................................................ 8 Remote Network Monitoring (RMON) .................................. 8 MIB Browser Management ....................................................
Out-of-Band Menu ............................................................... 22 SNMP Community ................................................................... 23 Trap Receiver ........................................................................... 24 Controlling CenturyStack Hubs .............................................................. 25 Group Control .......................................................................... 26 Port Control ................................................
Event Group Configuration ...................................................... 61 Statistics Information ............................................................... 63 History Information .................................................................. 65 Event Log ................................................................................. 68 System Utility ........................................................................... 70 System Restart ............................................
CenturyStack 8100 Managed Hub
Introduction Overview of Managed CenturyStack 8100 Hub The Managed CenturyStack 8100 Hub is a series of auto sensing dual speed, manageable and stackable hubs. The Managed CenturyStack Series consists of masters and managed slaves with 12 or 24 ports. The features and functions of the Managed CenturyStack make it a powerful, cost effective solution for large campus networks and rapid growth companies.
Network Management The Managed CenturyStack Hubs offer extensive management functions including local console, remote telnet, RMON Management, MIB Browser Management, Web-Based Management and SNMP Management. Remote Network Monitoring (RMON) Remote Monitoring allows users to monitor LANs remotely. Users can remain at one station and collect information from many different LANs. Managed CenturyStack supports Remote Network Monitoring and enables the user to set up for RMON using Web-Based Management.
RMON Support RMON is a major step forward in internetwork management. It defines a remote monitoring MIB that supplements MIB-II and provides the network manager with vital information about the internetwork. The Managed CenturyStack Hub Series fully supports RMON Management Groups 1, 2, 3, and 9, and users can set up for RMON Management using Web-Based Management, or SNMP Management. With these capabilities, Managed CenturyStack provides an effective and efficient way to monitor networks.
period, and other parameters. Once samples are taken, the data is stored as an entry in a media-specific table. Each entry defines one sample, and is associated with the history Control Entry that caused the sample to be taken. Each counter in the ether History Entry counts the same event as its similarly named counterpart in the Ether Stats Entry, except that each value here is a cumulative sum during a sampling period. The user can create up to 16 History Control Entries.
be issued. Managed CenturyStack RMON Management enables users to set up Event Groups. The Event Group Implementation of the Event Group is optional. The Event Group controls the generation and notification of events from the hub. Each entry in the event Table describes the parameters of the event that can be triggered. Each event entry is fired by an associated condition located in the MIB.
CenturyStack 8100 Managed Hub
Chapter 1 Getting Started Web-based Management Requirements Web-based Management allows comprehensive monitoring and configuring of the CenturyStack with the familiar interface of a Web browser. Web Management uses photographic quality views and real-time updates of hub activity. Web Management allows managing the CenturyStack from any location. Before the CenturyStack Web Management feature can be used, users must configure the hub’s Network Configurations.
The CenturyStack Home Page is loaded into the Web browser application as shown below. Home Page NOTE: If the CenturyStack Home Page does not load: 1. Review “Network Configuration” in the Lancast CenturyStack 8100 Managed Hub Installation and User Guide. 2. Check the hub’s IP Address using the Mini-Consoles. From the main menu select System Info. The IP Address displays; check this against the IP Address you enter in your Web Browser.
Trap Window A Trap Window is loaded when a web connection is made to a CenturyStack hub. The Trap Window is used to indicate any trap messages from the device. The Trap Window can be closed. When the Trap Window pops up, users can use the two menu items: Display and Buffer as follows: Display The CenturyStack management Trap Window displays a maximum of up to 100 traps. The Display menu has 3 sub menus: Pause: Pauses the display. Continue: Continue to display the trap messages.
The following traps are sent to the Trap Frame window: ColdStart: The system is re-initialized and may be altered from a previous state. LinkDown: A failure in one of the communications links. LinkUp: A communication link has come up. AuthenticationFailure: An unauthorized SNMP manager is detected. RptrGroupChange: A repeater group has been either added or removed. RptrResetEvent: A repeater function logic has been reset. risingAlarm: A RMON alarm entry has crossed its rising threshold.
Device Panel A device panel that emulates the front panel of the CenturyStack managed hub is loaded in the Device Panel window in the web-browser application. The device panel uses Java applets to display the utilization information that is displayed in the Mini-Console. Additional device panels in each device in the CenturyStack can be loaded by clicking on the hub number icons located on the right side of the device panel. The blue icon indicates a master hub is present.
System Information The System Information Menu displays information about the system software. You can view the system software and hardware information and configure the following system configurations: System Contact, System Name and System Location.
Chapter 2 Management Setup Network Configuration The Network Configuration Menu enables users to configure connections to the CenturyStack hubs. The Ethernet Menu is used to setup Ethernet connections. The Slip Menu is used to setup slip connections. The Console Menu is used to setup console or serial connections. The SNMP Community Setup Menu is used to setup SNMP Communities, and the Trap Receiver Menu is used to setup SNMP Trap Receivers.
Slip Menu The Slip Menu displays current Slip configurations and allows users to make new slip configuration settings, IP Address and Subnet Mask. Network Configuration – Slip Menu Please select Save to update the new configuration.
Serial Port Configuration The Serial Port Configuration enables users to monitor and configure Outof-Band serial connections through the sub menus, Console Menu and Out-of-Band Menu. Serial connections allow users to connect to the Hub while the hub is operating either by cable or modem. Console Menu A Console Port connection is made by connecting a null modem cable between the hub and a PC. A VT-100 emulator is needed to make the software connection between the two devices.
Out-of-Band Menu The Out-of-Band Menu allows setting up for connections to CenturyStack using a modem. Users can configure the Baud Rate to attain the fastest speed available to both the hub and the modem. Serial Port Configuration – Out-of-Band Menu The following shows the configurations and the optional values available for this menu.
SNMP Community The SNMP Community Setup Menu allows setting up a maximum of six Community Names, setting Access Right and Status. SNMP Community Setup Menu To setup an SNMP community, enter a valid SNMP Community name in the SNMP Community Name field. Set the Access Right (Read Only or Read/Write) and Status, then select Add. A valid community name is a community name that already exists in the network. When editing an existing name, use the Save button to update the configuration.
Trap Receiver The Trap Receiver Setup Menu allows setting up a maximum of six trap receivers. Users can setup trap receivers to receive traps when network violations occur. Trap Receiver Setup Menu To set up Trap Receivers enter an Index number, a SNMP Trap Receiver Name, the SNMP manager IP Address of the trap receiver, and set the Status. When all information is entered, select Add. To edit an existing trap receiver, enter its index number and the new information and select Save.
Chapter 3 Controlling CenturyStack Hubs Users can control Managed CenturyStack Hubs by selecting Device Control from the main menu. The following lists the controls available and a brief description of the control.
Group Control The Repeater Group Control/Status Menu displays status information for groups and allows enabling or disabling a group as well as naming and resetting the group.
Repeater Group Control – 2 To configure the Repeater Group Control, first select a group (1 – 6) and click the Submit button, to load the configurations for the selected group. Next configure the items listed below and select Save, to update the new configuration.
Port Control The Repeater Port Control/Status Menu displays status information for each port of each linked repeater. This menu allows enabling or disabling the Administration State, setting the Speed Control, and enabling or disabling Link Status Change Notification for ports.
Repeater Port Control-2 To configure repeater ports, first select the group (1 – 6) and select Submit to load the configurations for the selected group. Next select the port of the selected group that is to be configured. Then configure the items listed below and select Save to update the new configuration. Repeat for each port of each group.
Switch Module Control Switch Modules are slide-in units that can be inserted into managed CenturyStack Hubs to gain additional functions such as extending distances and switching between different speeds. The 3-Port Bridge Module has two internal ports (to bridge 10M and 100M segments) and one external port. The function of the external port can vary between different modules. For detailed features of modules, please refer to the CenturyStack Installation and User Guide.
To configure the 3-Port Bridge Module, first select the group (1 – 6) where a module exists and select Submit. If a module exists in the selected group, it is indicated next to Description under Current Configuration. Next, configure the items listed below and select Save to update the new configuration.
Redundant Link Control The Redundant Link Control Menu allows configuring of up to 24 pairs of redundant links within a stack. Users can ensure that all packets sent will reach their destination even in the event of a hub failure when Link Pairs are configured. Configuring Link Pairs requires naming the Link Pair with a numeral from 1~24, configuring primary and secondary groups and ports, setting the Link Switch Notify, setting the Status, and, finally, saving the configuration.
6. Enable the Link Switch Over Notify. (Optional) 7. Enable the Status. 8. Select Save to update the new Linked Pair. Repeat these steps for each Link Pair. Editing a Link Pair Users can edit a Link Pair by entering the Link Pair number (of an existing Link Pair) and reconfiguring the rest of the columns, then select Save. The Link Pair is updated to the new settings.
Intrusion Control The Security Intrusion Control/Status Menu allows setting up security features. Intrusion control is a MAC address-based capability to prevent any unauthorized nodes from accessing the network. The hub monitors those nodes that have been secured by the security control function. When a security violation is detected, a trap may be raised. The trap will be sent to the network manager to report the event and the port may also be disabled.
Security Intrusion-2 To configure Security Intrusion: 1. Select a port number from the Port Number drop down list. 2. Set the Intrusion Status. 3. Set the Intrusion Auth Address Auto Learn. 4. Enter the Intrusion Auth MAC Address. 5. Set the Intrusion Action. 6.
CenturyStack® 8100 Managed Hub
Chapter 4 Monitoring the Network CenturyStack network management enables users to monitor network statistics counters. Counters can be monitored in relative and absolute values. Counters can be monitored for each segment, each group, and each port. The Network Monitoring Menu also enables Address Search and Tracking and configuring Broadcast Storm Protection. Group Statistics Information The Repeater Group Statistics Information Menu displays statistic counters for each group.
To view the Repeater Group Statistics counter, select a group (1 – 6) from the Group Number drop down list. Next select the Display Mode and select Submit to load the counters for the selected group.
Port Statistics Information Menu – 2 To view port statistic information, select a group (1 – 6) from the Group Number drop down list. Then select a port (1 – 12/24), set the Display Mode and select Submit to load the counters for the selected port and group.
Port Statistics Information Group Number Number of the group in the stack (1 – 6) Port Number Port number of selected group (1 – 12/24) Display Mode Absolute or Relative Readable Frames Total readable frames received by the port FCS Errors Total FCS Errors received by the port Alignment Errors Total Alignment Errors received by the port Frame Too Long Total frames received by the port that were longer than 1518 octets Short Events Total frames received by the port that were shorter than 64 oc
Address Tracking The Address Tracking Information Menu provides per port based, node tracking capability (MAC address based). This capability provides the basic traffic analysis capability to diagnose network problems, such as Intrusion. The node tracking function records the source MAC of each data packet. Up to 15 Source MAC Addresses can be detected on each port.
Address Tracking Information 42 Group Number Repeater Group (1 – 6) Port Number Port number of selected group (1 – 12/24) Source Address Change This counter is incremented by one for each time that the Last Source Address for this port has changed Last Source Address The Source MAC Address of the last readable frame received by this port Source MAC Address Tracking List A list of source MAC addresses that were recently received on this port. The first Source MAC Address (i.e.
Address Search Information CenturyStack network management provides source (MAC address) search capability. This active address tracking capability is used to watch for a given MAC address and report which port on which it was seen. This capability can also be used to collect the necessary information for mapping the topology of a network. Up to 8 MAC address can be searched simultaneously.
3. Execute the Save command to get the owner of this entry. If the entry is free and available, the Address Search Lock is increased by 1, Address Search Status is set to “In Use”, and Address Search Owner is set to “Web”, as shown below. Otherwise, the request to own the entry is rejected. 4. After executing the Save command, please wait for a few seconds and press Save again to get the search result. Address Search “In Use” 6. Repeat Steps 1 – 4 for as many addresses to be searched.
Broadcast Storm Protection The CenturyStack Hub periodically monitors the broadcast counters of each hub port to detect a broadcast storm condition. If a hub port is detected to be causing a broadcast storm, the following actions can be taken: (1) sending a trap, (2) partition the port, or (3) both sending a trap and partitioning the port. The Hub continually monitors those ports that have been partitioned to check if the broadcast storm condition still exists.
Segment Rate Threshold: the number of broadcast packets received on a given segment per second Port Rate Threshold: the number of broadcast packets received on a given port per second. Optional Module Rate Threshold: the number of broadcast packets received on each port of a given optional module per second. Formula for calculating Broadcast packet rate: Broadcast packet rate = Broadcast packet received ÷ Sampling Interval in Seconds To configure the threshold for Broadcast Storm Protection: 1.
Broadcast Storm Detected CenturyStack network management provides broadcast storm detection. If a broadcast storm is detected, the Broadcast Storm Detected Menu displays the detected broadcast storm Group number, Port number, or the group number of the optional module.
CenturyStack 8100 Managed Hub
Chapter 5 Remote Network Monitoring The CenturyStack Hub fully supports RMON Management Group 1, 2, 3, and 9. Users can setup for RMON Management using Web-Based Management or SNMP Management. Described here is detailed information for RMON Group 1, 2, 3, and 9 as well as the operation with Web-Based Management. Remote network monitoring (RMON) probe is an instrument that exists for the purpose of managing a network.
• Problem Detection and Reporting The monitor can be configured to recognize conditions, most notably error conditions, and to continuously check for them. When one of these conditions occurs, the event may be logged, and management stations may be notified in a number of ways.
Statistic Group Configuration The Statistic Group Configuration enables configuring statistic groups. Indexes can be edited, saved, added, and deleted. Statistics Group Configuration Menu Adding a Statistics Group To add an index item all the following must be entered: Index, Owner, and Status, otherwise the entry will not be saved. To add an index item: 1. Enter an Index number in the Index field. 2. Set the data source. 3. Enter the name in the Owner field. 4. Set the Status. 5. Select Add.
Deleting a Statistics Entry To delete a statistics entry, enter the index number. Then, select Delete to remove the index item. NOTE: The default Index 1 and 2 cannot be deleted. Modifying a Statistics Group To modify an existing index item, enter the existing index number with the new information for each field. Then, select Save to complete the modification. The following lists the configurable items in the Statistics Group Configuration Menu.
History Group Configuration The History Group Menu provides a means of collecting the data gathered by the statistics group over time intervals and storing them for later retrieval. History Groups can be monitored, edited, saved, added and deleted with the History Group Configuration Menu. If any fields are left blank, the Status is saved as underCreation. History Group Configuration Menu Adding a RMON History Group To add an RMON History Group: 1. Enter a unique number in the Index field. 2.
Deleting a RMON History Group To delete a History Group, enter the index number. Then, select Delete to remove the index item. Modifying a RMON History Group To modify an existing index item, enter the existing index number with the new information for each field. Then, select Save to complete the modification. RMON History Group Configuration Index A value from 1 – 65535. The value must be unique. Not to be confused with Data Source Index.
threshold until the opposite threshold is crossed. The Hub provides the threshold control function to support the RMON Alarm Group. Up to 16 Alarm Control Entries can be created. The syntax and semantic checking are performed to verify the value input by the user before it can be set to the object of Alarm group. The valid Alarm Group configuration data is saved into the system NVRAM.
To configure an Alarm Group: 1. Enter the number in the Alarm Group Index (for Creation) field. 2. Select Add. After selecting Add the newly added index number shifts from the “For Creation” field, to the “For Modification and Deletion” field, and is ready for modification. 3. Configure the remaining fields. 4. Select Save. Alarm Group Configuration Menu-2 The following table explains the meaning of each field in the Alarm Group Configuration Menu.
Alarm Group Configuration Alarm Group Index • creation Create a new alarm group (number). • modification & deletion Select an existing alarm group to monitor or edit. Variable Category RMON/ rptr group/ rptr port Alarm Index The current alarm group index number Alarm Variable Category Read only Alarm Interval Alarm Sample Type • Absolute • Delta The time in seconds over which the data is sampled.
Event Group Configuration Menu-3 The Counter Ids, as shown below, are explained as follows: EtherStats DropEvents: The number of times drop events have been detected due to lack of resources. EtherStats Octets: The total number of octets of data (including those in bad packets) received on the network (excluding framing bits, but including FCS octets). EtherStats Pkts: The total number of packets (including bad packets, broadcast packets, and multicast packets) received.
EtherStats CRC Align Errors: The total number of packets received that had a length (excluding framing bits, but including FCS octets) between 64 and 1518 octets, but had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error). EtherStats Undersize Pkts: The total number of packets received that were less than 64 octets long (excluding framing bits, but including FCS octets) and were otherwise well formed.
EtherStats Pkts 65 to 127 Octets: The total number of packets (including bad packets) received that were between 65 and 127 octets in length inclusive (excluding framing bits, but including FCS octets). EtherStats Pkts 128 to 255 Octets: The total number of packets (including bad packets) received that were between 128 and 255 octets in length inclusive (excluding framing bits, but including FCS octets).
Event Group Configuration The Event group controls the generation and notification of events from the CenturyStack. Each entry in the event Table describes the parameters of the event that can be triggered. Each event entry is fired by an associated condition located elsewhere in the MIB. An event entry may also be associated with a function elsewhere in the MIB that will be executed when the event is generated. For example, a channel may be turned on or off by the firing of an event.
To configure the Event Group: 1. Enter an index number in the Event Group Index field. 2. Enter a description. 3. Select the Event Type. 4. Enter a valid Event Community name. 5. Enter the Event Owner name. 6. Set the Event Status to valid. 7. Select Add to add the Event Group. After saving an Event Group, the configuration is written under Current Configurations. The New Configuration is empty and available to enter another Event Group. See below.
Statistics Information The RMON Statistics Information Menu displays statistics counters in Absolute or Relative values, for 10Mbps segments and 100Mbps segments. To view statistics information, select an Ethernet Statistics Index from the drop down list. Select the Display Mode and click Submit. The statistics display. Statistics Information Menu “Statistics Information” lists the available statistics counters. Refer to the table on the following page.
Statistics Information Index Display Mode 1 (10M segment)/2 (100M segment) Absolute/Relative Data Source 10M segment/100M segment Owner The name of the Statistics group Status Valid Readable Frames Total readable frames received by the segment Multicast Frames Total multicast frames received by the segment Broadcast Frames Total broadcast frames received by the segment Packet Size 64 Total packets received by the segment of size 64 Packet Size 65 to 127 Total packets received by the segment
History Information The History Information Menu enables users to view history information as configured in the History Group Configuration Menu. RMON History Information To view history information, select an Ethernet History Index from the drop down list and click Submit. To view a sample, select an index number from the Sample Index drop down list and select Submit.
RMON History Information-2 66 CenturyStack 8100 Managed Hub
History Information History Control Data Source 10M segment/100M segment History Control Owner Name assigned as the Owner.
Event Log The RMON Event Log Menu displays information based on valid configurations made in the RMON Event Group Configuration Menu. RMON Event Log To view Event Logs, select the Log Index drop down list and select an index number from the Event Index drop down list and then select Submit.
Event Log Event Index Valid index items configured in the RMON Event Configuration Menu Log Index Number of the event log Event Description Description of the event Event Type No Change/Event None/Log/Trap/Log & Trap Event Community Name of the event community Event Owner Owner of the event community Event Status No Change/valid/underCreation/invalid Log Time The time to record the log Log Description Description of the log Remote Network Monitoring 69
System Utility The System Utility Menu provides the function System Restart. The system can be restarted at any time without loss of settings. System Restart The System Restart Menu allows the user to reset the system with a Warm start. A warm restart only reloads the system software.
Chapter 6 Additional Information Agency Compliance Product Safety and Compliance Statements: This equipment complies with the following requirements: • UL • CSA • EN60950 (safety) • FCC Part 15, Class A • EN55022 Class A (emissions) • EN50082-1 (immunity) This product shall be handled, stored and disposed of in accordance with all governing and applicable safety and environmental regulatory agency requirements.
Standards Compliance • IEEE 802.3 10BASE-T, 10BASE-5 Ethernet • IEEE 802.3u 100BASE-TX Ethernet • RFC 1213 MIB II RFC 1516 Repeater MIB Proprietary MIBs • RFC 1757 RMON Group 1, 2, 3 and 9 • In-Band and Out-of-Band Management • VT-100 Terminal Interface support Warranty and Servicing Information METRObility Optical Systems, Inc. warrants the CenturyStack 8100 Managed Hub to be in good working order for a period of THREE YEARS from the date of METRObility shipment.
Additional Information 73
25 Manchester Street, Merrimack, NH 03054 USA tel: 603-880-1833 • fax: 603-594-2887 www.metrobility.
