Qtech QSW-2910-09T-POE-AC/DC [195/212] Chapter 18 flex links configuration

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Москва, Новозаводская ул., 18, стр. 1

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Chapter 18 Flex links Configuration

18.1 Brief introduction of Flex links

Flex links is layer 2 links backup protocol which provides for STP option scheme. Choose Flex

links to realize link backup when the STP is not wanted in customer network. If STP enables,

flex links is disabled. Flex links consists of a pair of interfaces(can be ports or convergent

interface). One interface is transmitting data, the other is standby. The backup interface starts

transmitting data when there is default in master link. The failure interface willl be standby

when it turns well and it will be transmitting data in 60 seconds when preempt mechanism is

set. Flex links interface should disable STP and Flex links interface can configure bandwidth

and delay being preempt mechanism and the superior one will be the master interface. There

must be trap alarm when master or backup link default.

18.2 Flex links Configuration

18.2.1 Flex links Configuration list

 Enable or disable Flex links of interface(or convergent interface)

 Configure Flex links preemption mode

 Configure Flex links preemption mode delay

 Disaply Flex links information

18.2.2 Enable or disable Flex links of interface(or convergent

interface)

 Configure interface Flex links in interface configuration mode

switchport backup { interface interface-num | channel-group channel-group-number}

 Configure channel-group Flex links in global configuration mode:

channel-group channel-group-number backup { interface interface-num | channel-group

channel-group-number}

For example:

!Configure flex links backup interface of e0/0/1 to be e0/0/2

QTECH(config-if-ethernet-0/0/1)#switchport backup interface Ethernet

0/0/2

!Configure flex links backup interface of channel-group 1 to be

e0/0/2

QTECH(config)#channel group 1 backup interface Ethernet 0/0/2