84 ESR Series Routers Operation Manual
Objective: Establish redundancy of the ESR router L2 connections for VLAN 50-55 using SW1 and
SW2 devices.
Fig. 7.25—Network structure
Solution:
1. First, do the following:
Create VLAN 50-55:
esr-1000(config)# vlan 50-55
You should disable STP for gigabitethernet 1/0/9 and gigabitethernet 1/0/10 interfaces, i.e. these
protocols cannot operate simultaneously.
esr-1000(config)# interface gigabitethernet 1/0/9-10
esr-1000(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-1000(config-if-gi)# switchport general allowed vlan add 50-55
esr-1000(config-if-gi)# exit
2. Main configuration step:
Make gigabitethernet 1/0/10 redundant for gigabitethernet 1/0/9:
esr-1000(config)# interface gigabitethernet 1/0/9
esr-1000(config-if-gi)# backup interface gigabitethernet 1/0/10 vlan 50-55
Configuration changes will take effect when the configuration is applied:
esr-1000# commit
Configuration has been successfully committed
esr-1000# confirm
Configuration has been successfully confirmed
To view information on redundant interfaces, use the following command:
esr-1000# show interfaces backup
7.25 QoS configuration
QoS (Quality of Service) is a technology that provides various traffic classes with various service
priorities. QoS service allows network applications to co-exist in a single network without altering the
bandwidth of other applications.
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