ELTEX ESR-3100 - Configuration Example

ESR series service routers.ESR-Series. User manual
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8.11.2 Configuration example
Objective:
Establish redundancy of the ESR router L2 connections for VLAN 50-55 using SW1 and SW2 devices.
Solution:
First, do the following:
Create VLAN 50, -55:
esr(config)# vlan 50-55
Disable STP for gigabitethernet 1/0/9 and gigabitethernet 1/0/10 interfaces, i.e. these protocols cannot
operate simultaneously:
esr(config)# interface gigabitethernet 1/0/9-10
esr(config-if-gi)# spanning-tree disable
Add gigabitethernet 1/0/9 and gigabitethernet 1/0/10 interfaces into VLAN 50-55 in 'general' mode.
esr(config-if-gi)# switchport general allowed vlan add 50-55
esr(config-if-gi)# exit
Main configuration step:
Make gigabitethernet 1/0/10 redundant for gigabitethernet 1/0/9:
esr(config)# interface gigabitethernet 1/0/9
esr(config-if-gi)# backup interface gigabitethernet 1/0/10 vlan 50-55
To view information on redundant interfaces, use the following command:
esr# show interfaces backup