Configuring port redundancy (G350 only). Avaya Media Gateway G350, Media Gateway G250

Configuring advanced switching

Table 101: VLAN CLI commands (continued)

Root level command show interfaces

First level

Command

Description

Display interface configuration and statistics for a particular interface or all interfaces

Display port VLAN binding mode information

show port vlan-binding-mode show trunk show vlan

Display VLAN tagging information for all or some ports

Display the VLANs configured in the media gateway

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Configuring port redundancy (G350 only)

Redundancy involves the duplication of devices, services, or connections, so that 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. Even the most reliable equipment might fail on occasion, but a redundant component can ensure that the network continues to operate despite such failure.

To achieve port redundancy, you can define a redundancy relationship between any two ports in a switch. One port is defined as the primary port and the other as the secondary port. If the primary port fails, the secondary port takes over.

You can configure up to 25 pairs of ports per chassis. Each pair contains a primary and secondary port. You can configure any type of Ethernet port to be redundant to any other. You can configure redundant ports from among the Ethernet LAN port on the G350 front panel and the Ethernet ports (1-24) and the Gigabit Ethernet port (51) on the MM314 Media Module or the

Ethernet ports (1-40) and the Gigabit Ethernet port (51) on the MM316 Media Module.

Note:

Port redundancy is not supported on the G250.

Note:

386 Administration for the Avaya G250 and Avaya G350 Media Gateways

Configuring port redundancy (G350 only)

Secondary port activation

The secondary port takes over within one second and is activated when the primary port link stops functioning. Subsequent switchovers take place after the minimum time between switchovers has elapsed. To set the minimum time between switchovers, use the set port

redundancy-intervals

command.

Switchback

If switchback is enabled and the primary port recovers, a switchback takes place. Use the set

port redundancy-intervals

command to set the following switchback parameters:

●

min-time-between-switchovers. The minimum time that is allowed to elapse before a primary-backup switchover

●

switchback-interval. The minimum time the primary port link has to be up before a switchback to the primary port takes place. If you set this to none, there is no switchback to the primary port when it recovers. In this case, switchback to the primary port only takes place if the secondary port fails.

Port redundancy CLI commands

The following commands are used to configure port redundancy. For more information about these commands, see Avaya G250 and Avaya G350 CLI Reference, 03-300437.

●

●

Use the set port redundancy enable/disable command to globally enable or disable the redundancy pairs you have defined. Using this command will not delete existing redundancy entries.

Use the set port redundancy command to define or remove redundancy pairs. Enter

show port redundancy

to ensure that there is no redundancy scheme already defined on any of the links.

●

●

Use the set port redundancy-intervals command to configure the two time constants that determine redundancy switchover parameters.

Enter show port redundancy to display information about software port redundancy schemes defined for the switch.

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Configuring advanced switching

Note:

Note:

If you configure the Ethernet LAN port on the G350 front panel to be redundant with the Gigabit Ethernet port on the MM314 or MM316 Media Module, the

Ethernet LAN port becomes the primary port after resetting the G350 even if you configured the Gigabit Ethernet port to be primary. To prevent this, use the set

port redundancy-intervals

command with the switchback interval parameter set to 0.

Port redundancy configuration examples

The following example creates a port redundancy pair:

G350-001(super)# set port redundancy 6/3 6/5 on 1

Monitor: Port 6/5 is redundant to port 6/3.

Port redundancy is active - entry is effective immediately

The following example deletes a port redundancy pair:

G350-001(super)# set port redundancy 6/3 6/5 off

Entry Monitor removed: Port 6/5 is not redundant to port 6/3

The following example enables all configured port redundancies:

G350-001(super)# set port redundancy enable

All redundancy schemes are now enabled

The following example disables all configured port redundancies:

G350-001(super)# set port redundancy disable

All redundancy schemes are disabled but not removed

The following example configures the switchback interval for all configured port redundancies:

G350-001(super)# set port redundancy-intervals 60 30

Done!

The following example displays port redundancy information:

G350-001(super)# show port redundancy

Redundancy Name Primary Port Secondary Port Status

----------------- -------------- ---------------- --------

Monitor 6/3 6/5 primary

Minimum Time between Switchovers: 60

Switchback interval: 30

388 Administration for the Avaya G250 and Avaya G350 Media Gateways