Avaya Configuration Guide AVAYA P460 MULTILAYER MODULAR SWITCH SOFTWARE VERSION 1.
Contents List of Tables ....................................................................................................... v List of Figures .................................................................................................. vii Chapter 1 Avaya P460 Product Overview........................................................................ 1 Introduction ........................................................................................................ 1 Avaya P460 Main Components ...
Table of Contents Flow Control ...............................................................................16 Duplex Mode ..............................................................................16 Speed ...........................................................................................16 MAC Address ............................................................................16 CAM Table ..................................................................................
Table of Contents Chapter 5 Avaya P460 Layer 3 Features ......................................................................... 39 Introduction ...................................................................................................... 39 What is Routing? ................................................................................... 39 Routing Configuration .................................................................................... 41 Forwarding .................................
Table of Contents Policy Configuration CLI Commands ...............................................64 Policy Configuration Example ............................................................65 Chapter 6 iv Switch Monitoring Features ........................................................................... 67 SNMP Configuration ....................................................................................... 67 SNMP Configuration Overview .........................................................
List of Tables Table 3.1 Table 4.1 Table 5.2 Avaya P460 Configuration Guide ACT and OPR LED Summary .................................................. 11 Possible LAG Configurations ................................................... 28 Differences Between RIP and RIP2..........................................
List of Tables vi Avaya P460 Configuration Guide
List of Figures Figure 1.1 Figure 2.1 Figure 2.2 Figure 2.3 Figure 4.1 Figure 4.2 Figure 4.3 Figure 5.1 Figure 5.3 Figure 5.4 Figure 5.5 Avaya P460 Configuration Guide The Avaya P460 Switch – Front View ....................................... 1 M460ML-SPV Supervisor Module Serial Console Port .......... 3 M460ML-SPV Supervisor Module Fast Ethernet Console Port ................................................................................................. 5 Redundant Outband Connections .................
List of Figures viii Avaya P460 Configuration Guide
Chapter 1 Avaya P460 Product Overview Introduction The Avaya P460 is a high-performance multilayer modular switch with two Supervisor module slots, four I/O slots and up to three Power Supply Units. It features full redundancy from switching fabric to port level. Figure 1.
Chapter 1 Avaya P460 Product Overview Avaya P460 Main Components Note: For information on Installation, Troubleshooting and Maintenance of these components, refer to the “Avaya P460 Installation and Maintenance Guide.” Supervisor Modules The P460 Supervisor modules form the core of the P460.
Chapter 2 Establishing Switch Access Introduction This chapter describes how to access the Avaya P460 CLI from the following devices: • A terminal to the serial port on the Supervisor Module • A workstation running a Telnet session connected via an I/O module (Inband) • A workstation running a Telnet session connected to the Console Fast Ethernet port on a Supervisor module (outband) • A remote terminal/workstation attached via a modem (PPP connection) to the Supervisor Console Serial port.
Chapter 2 Establishing Switch Access Note: If you connect your terminal to the Standby SPV, you can get access to all the CLI commands by opening a Session to the Active SPV. Establishing a Telnet Connection with the Switch (Inband) Perform the following steps to establish a Telnet connection to the P460 for configuration: L You need to assign an inband interface IP address using a direct connection to the console serial port before you can establish the Telnet session.
Chapter 2 Establishing Switch Access In order to... Use the following command... Send an ICMP echo request packets to another node on the network. ping Note: For more detailed information on the CLI commands, please refer to the Avaya P460 Reference Guide Establishing a Telnet Connection with the Switch (Outband) Figure 2.
Chapter 2 Establishing Switch Access Outband Interface Connection CLI Commands 6 In order to... Use the following command...
Chapter 2 Establishing Switch Access Redundant Outband Connections You can create a redundant outband management connection by connecting both Supervisor modules to the NMS via the Fast Ethernet interface by a switch (see Figure 2.3). Figure 2.3 Redundant Outband Connections Switch Workstation In this configuration, the Active SPV will respond to its Out-band port and the port of the other SPV will be ignored.
Chapter 2 Establishing Switch Access Establishing a PPP via Modem Connection with the P460 (Sideband) Overview The Point-to-Point Protocol (PPP) provides a Layer 2 method for transporting multiprotocol datagrams over point-to-point links. Here only IP datagrams will be exchanged, over a RS232 serial connection, between the P460 supervisor module and a remote peer (such as Ethernet) via a modem and the telephone lines. This provides remote access the sideband management interface of a P460 via a modem.
Chapter 2 Establishing Switch Access Setting Up Sideband (PPP) Connection Configuration L You need to configure an IP address and netmask for the sideband interface before you can establish a ppp link. 1 Connect a terminal to the Serial console port. 2 When you are prompted for a Login Name, enter the default name root. 3 When you are prompted for a password, enter the password root. You are now in Supervisor Level.
Chapter 2 10 Establishing Switch Access Avaya P460 Configuration Guide
Chapter 3 Avaya P460 Supervisor Module Features Introduction The Avaya P460 Supervisor module provides the following functionality: • Chassis-wide control • I/O module initialization • Fabric initialization • Switching that also uses also the fabric of the second SPV • Layer 3 functionality including routing • SNMP Management agent • PSU & Fans monitoring • Power Budgeting & Management • User interface • Management interface At least one SPV is essential for the switch operation.
Chapter 3 Avaya P460 Supervisor Module Features Table 3.1 ACT and OPR LED Summary ACT LED is... OPR LED is... M460ML-SPV Module mode ON Blinking Active No fan module present OFF ON Standby OFF Blinking Halted or booting Supervisor Synchronization Configuring the Supervisor Modules for Active/Standby Operation In order to operate in an Active-Standby configuration, the two SPVs must be synchronized. • If the SPVs are not synchronized, one is Active and the other Halted.
Chapter 3 Avaya P460 Supervisor Module Features — Embedded Web image — Preferred boot bank — Chassis synchronization L The transfer process can take up to 90 seconds. L The following screen capture shows the process: P460-1(super)# sync spv This command may overwrite the neighbor SPV software and reset both SPVs *** Confirmation *** - do you want to continue (Y/N)? y Copying Bank A to the neighbor SPV ... Copying Bank A to the neighbor SPV done Copying Bank B to the neighbor SPV ...
Chapter 3 Avaya P460 Supervisor Module Features • Layer 2 configuration changes are saved in both Supervisor modules when you press Enter. L The Supervisor module Ethernet outband interface configuration is not synchronized between the modules. • Layer 3 startup configuration is saved in the Standby SPV when you execute the copy running-config startup-config CLI command.
Chapter 4 Avaya P460 Layer 2 Features Ethernet Ethernet is one of the most widely implemented LAN standards. It uses the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) access method to handle simultaneous demands. CSMA/CD is a multi-user network allocation procedure in which every station can receive the transmissions of any other station. Each station waits for the network to be idle before transmitting and each station can detect collisions by other stations.
Chapter 4 Avaya P460 Layer 2 Features The Avaya P460 supports auto-negotiation enabling/disabling on a per-port basis. Flow Control€ Flow Control ensures that the receiving device can handle all the incoming data. Flow control does this by adjusting the data flow from one device to another. This is particularly important where the sending device can send data much faster than the receiving device can receive the data. There are many flow control mechanisms.
Chapter 4 Avaya P460 Layer 2 Features CAM Table€ It might be inefficient if the Avaya P460 could not “remember” which MAC address was accessible from which port, that is, where a specific device is attached. Therefore, the P460 stores a mapping of learned MAC addresses to port and VLANs in the CAM table. The switch then checks subsequent frames. If the MAC address appears in the CAM Table, then the packet is forwarded to the appropriate port.
Chapter 4 18 Avaya P460 Layer 2 Features In order to... Use the following command... Display the CAM table entries for a specific port show cam Clear all the CAM entries. clear cam Send ICMP echo request packets to another node on the network.
Chapter 4 Avaya P460 Layer 2 Features Ethernet Configuration Examples This example shows basic Ethernet configuration for port 40 on I/O module 6: 1 Disabling port negotiation P460-1(super)# set port negotiation 6/40 disable Link negotiation protocol disabled on port 6/40 2 Setting port duplex to full P460-1(super)# set port duplex 6/40 full Port 6/40 speed set to full duplex 3 Setting port speed to 100 Mbps P460-1(super)# set port speed 6/40 100mb Port 6/40 speed set to 100MBps 4 Enabling port negot
Chapter 4 Avaya P460 Layer 2 Features VLAN Configuration VLAN Overview A VLAN is made up of a group of devices on one or more LANs that are configured so the devices operate as if they form an independent LAN. These devices can, in fact, be located on several different LAN segments. VLANs can be used to group together departments and other logical groups, thereby reducing network traffic flow and increasing security within the VLAN. Figure 4.
Chapter 4 Avaya P460 Layer 2 Features In Figure 4.2, the switch has three separate VLANs: Sales, Engineering, and Marketing. Each VLAN has several physical ports assigned to it with PC’s connected to those ports. When traffic flows from a PC on the Sales VLAN, for example, that traffic is only forwarded out the other ports assigned to that VLAN. Thus, the Engineering and Mktg VLANs are not burdened with processing that traffic. Figure 4.
Chapter 4 Avaya P460 Layer 2 Features Multi VLAN Binding Multi VLAN binding, also known as Multiple VLANs per port, allows access to shared resources by stations that belong to different VLANs through the same port. This is useful in applications such as multi-tenant networks, where each user has his or her own VLAN for privacy. The whole building has a shared high-speed connection to the ISP. In order to accomplish this, the P460 enables multiple VLANs per port.
Chapter 4 Avaya P460 Layer 2 Features P460 VLAN Table The P460 VLAN table includes two types of VLANs: • User-configured VLANs • Dynamically learnt from the incoming traffic on the “Bind to All” ports When the VLAN list reaches its maximum capacity it is locked. No VLANs are dynamically learned and it is not be possible to configure more VLANs manually. If this occurs, use the clear dynamic vlans CLI command to free space in the VLAN list.
Chapter 4 24 Avaya P460 Layer 2 Features In order to... Use the following command...
Chapter 4 Avaya P460 Layer 2 Features VLAN Configuration Example This example shows VLAN configuration for port 40 on I/O module on I/O module 6: 1 Defining VLAN 10 (switch-level) P460-1(super)# set vlan 10 VLAN ID 10 created 2 Assigning VLAN 10 to port 40 on I/O module 6 P460-1(super)# set port vlan 10 6/40 VLAN VLAN ---10 3 10 modified.
Chapter 4 Avaya P460 Layer 2 Features Spanning Tree Configuration Spanning Tree Overview Without Spanning Tree a Network might experience packet storms when there are multiple bridges and paths through the network. In addition, loops might be formed in the network. When there are loops in the network Bridges see more than one path to the same device. Packet storms and loops can cause a network to slow to a crawl, and eventually bring the network down.
Chapter 4 Avaya P460 Layer 2 Features Spanning Tree CLI Commands In order to... Use the following command...
Chapter 4 Avaya P460 Layer 2 Features LAG Configuration LAG Overview A LAG uses multiple ports to create a high bandwidth connection with another device. For example, assigning four 100BASE-T ports to a LAG on an M4648ML-T I/O module, allows the module to communicate at an effective rate of 400 Mbps with another switch. LAGs provide a cost-effective method for creating a high bandwidth connection. LAGs also provide built-in redundancy for the ports that belong to a LAG.
Chapter 4 Table 4.1 Avaya P460 Layer 2 Features Possible LAG Configurations Module Maximum number of LAGs Base port is... Additional ports must be... Logical port numbers M4612ML-G 6 GBIC GBIC Part of the same group of six ports (1-6; 7-12) 101-103 (ports 1-6) 104-106 (ports 7-12) Logical Port Numbers The logical port number is used to identify the LAG. For example, if you define one LAG containing ports 1 to 3 on an M4612ML-G module, the LAG has the logical port number 101.
Chapter 4 Avaya P460 Layer 2 Features LAG CLI Commands In order to... Use the following command...
Chapter 4 Avaya P460 Layer 2 Features Port Redundancy Configuration Port Redundancy Overview Redundancy involves the duplication of devices, services, or connections, so, in the event of a failure, the redundant duplicate can take over for the one that failed. Since computer networks are critical for business operations, it is vital to ensure that the network continues to function even if a piece of equipment fails.
Chapter 4 Avaya P460 Layer 2 Features Redundancy CLI Commands In order to... Use the following command... Define/delete a redundancy entry.
Chapter 4 Avaya P460 Layer 2 Features Port Redundancy Configuration Example This example shows configuration of a port redundancy pair called “p460red” between ports 40 and 48 on I/O module 6 and its configuration.
Chapter 4 Avaya P460 Layer 2 Features IP Multicast Filtering Configuration Overview IP Multicast is a method of sending a single copy of an IP packet to multiple destinations. Different applications including video streaming and video conferencing can use IP multicast. The Multicast packet is forwarded from the sender to the recipients, duplicated only when needed by routers along the way. The packet is sent in multiple directions such that it reaches all the members of the Multicast group.
Chapter 4 • Avaya P460 Layer 2 Features The Group Filtering Delay time is the time that the switch should wait between becoming aware of a Multicast group on a certain VLAN and starting to filter traffic for this group. IP Multicast CLI Commands In order to... Use the following command...
Chapter 4 Avaya P460 Layer 2 Features Broadcast Storm Control Broadcast Storm Control Overview This feature allows you to protect the network or switch from excessive Broadcast or Unknown traffic. When the Broadcast Storm Control is enabled, the switch discards broadcast, multicast and unknown packets when the Broadcast Threshold Rate on a switch port exceeds a specified threshold. The Broadcast Threshold Rate is the number of broadcast packets received by a port per second.
Chapter 4 Avaya P460 Layer 2 Features Broadcast Storm Control CLI Commands In order to... Use the following command... Enable or disable broadcast storm control. set broadcast storm control Set the broadcast storm control threshold (in packets per second) set broadcast storm control threshold Display broadcast storm status and settings.
Chapter 4 Avaya P460 Layer 2 Features Priority Configuration Overview By its nature, network traffic varies greatly over time, so short-term peak loads might exceed the switch capacity. When this occurs, the switch must buffer frames until there is enough capacity to forward them to the appropriate ports. This, however, can interrupt time-sensitive traffic streams, such as Voice and other converged applications. These packets need to be forwarded with the minimum of delay or buffering.
Chapter 5 Avaya P460 Layer 3 Features Introduction What is Routing? Routing allows transfer of a data packet from source to destination by a device called a router. Routing involves two basic activities: determination of optimal routing paths and transmission of information packets through an internetwork. Routers use routing tables to determine the routes to particular network destinations and, in some cases, metrics associated with those routes.
Chapter 5 Avaya P460 Layer 3 Features Figure 5.1 Routing First Hop Protocol Address:Destination Physical Address:Router 1 VMAC: 0005E000102 (VRID) Main Router 1 VRID: 1, IP: 20.20.20.1=Ass. IP VMAC: 00005E000101 (VRID) Third Hop Protocol Address:Destination Physical Address:Destination VMAC: 0005E000102 (VRID) Main Router 1 VRID: 1, IP: 20.20.20.1=Ass. IP VMAC: 00005E000101 (VRID) Second Hop Protocol Address:Destination Physical Address:Router 2 VMAC: 0005E000102 (VRID) Main Router 1 VRID: 1, IP: 20.
Chapter 5 Avaya P460 Layer 3 Features Routing Configuration Forwarding The P460 forwards IP packets between IP networks. When it receives an IP packet through one of its interfaces, it forwards the packet through one of its interfaces. The P460 supports multinetting. This allows it to forward packets between IP subnetworks on the same VLAN and between different VLANs. Forwarding is performed through standard means in Router mode.
Chapter 5 Avaya P460 Layer 3 Features IP Configuration IP Configuration CLI Commands 42 In order to... Use the following command...
Chapter 5 Avaya P460 Layer 3 Features In order to... Use the following command...
Chapter 5 Avaya P460 Layer 3 Features 3 Configure a VLAN for the specific IP interface Marketing: Router-1(super)# set vlan 100 name vlan#100 Router-1(super)# 4 Define an interface called Marketing, assign an IP address and the VLAN: Router-1(super)# interface Marketing Router-1(marketing) # ip address 149.49.37.1 255.255.255.
Chapter 5 Avaya P460 Layer 3 Features L This is necessary to retain the configuration after a reset Router-1(configure)# copy running-config startup-config Avaya P460 Configuration Guide 45
Chapter 5 Avaya P460 Layer 3 Features RIP (Routing Interchange Protocol) Configuration RIP Overview RIP is one of the two main groups of routing protocols - the other is OSPF (refer to "OSPF Overview" on page 49 for details). It is a “distance vector protocol” – the router decides which path to use on distance or the number of intermediate hops.
Chapter 5 Avaya P460 Layer 3 Features RIP2 RIP2 overcomes some of the shortcomings of RIP. Table 5.2 summarizes the differences between RIP and RIP2. Table 5.
Chapter 5 48 Avaya P460 Layer 3 Features In order to... Use the following command...
Chapter 5 Avaya P460 Layer 3 Features OSPF (Open Shortest Path First) Configuration OSPF Overview OSPF is a routing protocol developed for IP networks based on the shortest path first or link-state algorithm. It was introduced to overcome the limitations of RIP in increasingly complex network designs. OSPF is based on the cost of a particular path. In contrast, RIP uses hops as a path criterion. Also, updates are sent on a “need to know” basis rather than every 30 seconds as with RIP.
Chapter 5 50 Avaya P460 Layer 3 Features In order to... Use the following command... Configure router identity ip ospf router-id Redistribute routing information from other protocols into OSPF redistribute (RIP) Configure the delay between runs of OSPF’s SPF calculation timers spf Configure interface metric ip ospf cost Specify the time interval between hellos the router sends ip ospf hello-interval Configure the interval before declaring the neighbor as dead.
Chapter 5 Avaya P460 Layer 3 Features Static Routing Configuration Static Routing Overview When dynamic routing protocols – RIP or OSPF – are not appropriate, you can manually configure static routes to indicate the next hop on the path to the final packet destination. A static route becomes inactive if the interface over which the route is defined is disabled. When the interface is enabled, the static route becomes active again.
Chapter 5 Avaya P460 Layer 3 Features In order to... Use the following command...
Chapter 5 Avaya P460 Layer 3 Features Route Redistribution Route redistribution is the interaction of multiple routing protocols. OSPF and RIP can be operated concurrently in the P460. In this case, you can configure the P460 to redistribute routes learned from one protocol into the domain of the other routing protocol. Similarly, static routes can be redistributed to RIP and OSPF. Take care when you configure Route redistribution.
Chapter 5 Avaya P460 Layer 3 Features ARP (Address Resolution Protocol) Table Configuration ARP Overview IP logical network addresses are independent of physical addresses. The physical address must be used to convey data in the form of a frame from one device to another. Therefore, a mechanism is required to acquire a destination device hardware address from its IP address. This mechanism is called ARP (Address Resolution Protocol).
Chapter 5 Avaya P460 Layer 3 Features The ARP Table The ARP table stores recently used pairs of IP/MAC addresses. This storage saves time and communication costs, since the host looks in the ARP cache first when transmitting a packet. If the information is not there, then the host sends an ARP Request. See Figure 5.3. ARP CLI Commands In order to... Use the following command...
Chapter 5 Avaya P460 Layer 3 Features BOOTP/DHCP (Dynamic Host Configuration Protocol) Relay Configuration BOOTP/DHCP Overview BOOTP Short for Bootstrap Protocol, BootP is an Internet protocol that allows a diskless workstation to discover the following: • Its own IP address • The IP address of a BOOTP server on the network • A file to be loaded into memory to boot the workstation. BOOTP allows the workstation to boot without requiring a hard disk or diskette drive.
Chapter 5 Avaya P460 Layer 3 Features When the DHCP/BOOTP server is configured to allocate addresses only from a single subnetwork among the different subnetworks defined on the VLAN, you might need to configure the P460 with the relay address on that subnet so the DHCP/BOOTP server can accept the request. DHCP/BOOTP Relay in P460 is configurable per VLAN and allows for two DHCP/ BOOTP servers to be specified. In this case, the P460 duplicates each request, and sends it to both servers.
Chapter 5 Avaya P460 Layer 3 Features NetBIOS Re-broadcast Configuration NetBIOS Overview Short for Network Basic Input Output System, an application programming interface (API) that augments the DOS BIOS by adding special functions for localarea networks (LANs). Almost all LANs for PCs are based on the NetBIOS. Some LAN manufacturers have even extended it, adding additional network capabilities. The Avaya P460 can be configured to relay netbios UDP broadcast packets.
Chapter 5 Avaya P460 Layer 3 Features VRRP (Virtual Router Redundancy Protocol) Configuration VRRP Overview VRRP is an IETF protocol designed to support redundancy of routers on the LAN, and load balancing of traffic. VRRP is transparent to host stations, making it an ideal option when redundancy, load balancing and ease of configuration are all required. The concept underlying VRRP is that a router can backup other routers, in addition to performing its primary routing functions.
Chapter 5 Avaya P460 Layer 3 Features VRRP Configuration Example 1 Figure 5.4 VRRP Configuration Example Backup Router 2 VRID: 2, IP: 30.30.30.2 Ass. IP: 30.30.30.1 VMAC: 0005E000102 (VRID) Main Router 1 VRID: 1, IP: 20.20.20.1=Ass. IP VMAC: 00005E000101 (VRID) IP: 30.30.30.10 DG: 30.30.30.1 IP: 20.20.20.10 DG: 20.20.20.1 IP: 20.20.20.20 DG: 20.20.20.1 IP: 30.30.30.20 DG: 30.30.30.1 Backup Router 1 VRID: 1, IP: 20.20.20.2 Ass. IP: 20.20.20.1 VMAC: 00005E000101 (VRID) Main Router 2 VRID: 2, IP: 30.
Chapter 5 • • • Avaya P460 Layer 3 Features 00.00.5E.00.01.VRID as a response to the stations ARP requests. In the meantime, the redundant router will use a VRRP polling protocol to check the Main router integrity at one second intervals (default). Otherwise, it is idle If the Main router fails, the redundant router that does not receive a response from four consecutive polling requests (default) will take over and start to advertise the same Virtual MAC for the ARP requests.
Chapter 5 62 Avaya P460 Layer 3 Features In order to... Use the following command... Set the primary address used as the source address of VRRP packets for the virtual router ID ip vrrp primary Accept or discard packets addressed to the IP address(es) associated with the virtual router, such as ICMP, SNMP, and TELNET.
Chapter 5 Avaya P460 Layer 3 Features Policy Configuration Policy Configuration Overview The P460 supports QoS (Quality of Service) by using multiple priority levels and IEEE 802.1p priority tagging. This QoS ensures that data and voice receive the necessary levels of service. The Avaya P460 can enforce QoS policy on routed packets and change their 802.
Chapter 5 Avaya P460 Layer 3 Features Figure 5.5 Avaya P460 Policy Policy Configuration CLI Commands 64 In order to... Use the following command... Configure the DSCP-802.
Chapter 5 Avaya P460 Layer 3 Features In order to... Use the following command... Check the policy for a simulated packet ip simulate Set the list cookie for a specific policy list ip access-list-cookie Copy a configured source policy list to a destination policy list ip access-list-copy Verify that all the rules in a priority list are valid validate-group Display information about the configured active access list.
Chapter 5 66 Avaya P460 Layer 3 Features Avaya P460 Configuration Guide
Chapter 6 Switch Monitoring Features SNMP Configuration SNMP Configuration Overview Managers and Agents SNMP uses software entities called managers and agents to manage network devices: The manager monitors and controls all other SNMP-managed devices or network nodes on the network. There must be at least one SNMP Manager in a managed network. The manager is installed on a workstation located on the network. An agent resides in a managed device or network node.
Chapter 6 Switch Monitoring Features • • • function, you do not need to know the exact variable name you are looking for. The SNMP manager takes the variable you name and then uses a sequential search to find the desired variable. Retrieve a number of values – a get-bulk action The SNMP manager performs the number of get-next actions that you specify. Change a setting on the agent – a set action The SNMP manager requests the agent to change the value of the MIB variable.
Chapter 6 Switch Monitoring Features In order to... Use the following command...
Chapter 6 Switch Monitoring Features RMON RMON Overview RMON, the internationally recognized network monitoring standard, is a network management protocol that allows network information to be gathered at a single workstation. You can use RMON probes to monitor and analyze a single segment only. When you deploy a switch on the network, there are additional components in the network that cannot be monitored using RMON. These components include the switch fabric, VLAN, and statistics for all ports.
Chapter 6 Switch Monitoring Features In order to... Use the following command...
Chapter 6 Switch Monitoring Features SMON SMON Overview SMON is Avaya’s standard-setting switch monitoring technology that has now been adopted as IETF standard RFC 2613. SMON extends the RMON standard to provide the switch monitoring tools and features you need to analyze the switched network and all its components. SMON provides the basis for top-down network monitoring. Top-down monitoring starts when the you notice particular traffic flow patterns in a global view of the network.
Chapter 6 Switch Monitoring Features SMON CLI Commands See "Basic Switch Configuration" in the Avaya P460 Installation and Maintenance Guide.
Chapter 6 Switch Monitoring Features Logs Log Overview There are two logs are available for each Supervisor module – the System Log file and the Event Log file. • The System Log displays all the resets that took place in the supervisor with their time stamp and cause.
Chapter 6 Switch Monitoring Features Port Mirroring Configuration Port Mirroring Overview Port Mirroring copies all received and transmitted packets (including local traffic) from a source port to a predefined destination port, in addition to the normal destination port of the packets. Port Mirroring, also known as “sniffing” is useful in debugging network problems. Port mirroring allows you to define a source port and a destination port, regardless of port type.
Chapter 6 Switch Monitoring Features Port Classification Port Classification Overview With the Avaya P460, you can classify any port as “regular” or “valuable”. Setting a port to “valuable” classification means that a link fault trap is sent in the event of a link failure. The trap is sent even when the port is disabled. This feature is particularly useful for the port redundancy application, where you need to be informed about a link failure on the dormant port.
