Cisco Ex SERIES Uživatelský manuál stáhnout pdf (Strana 51)

Juniper Networks/Cisco Systems Switch Interoperability Cookbook

! ! !

Spanning tree, which is enabled by default on Juniper and Cisco switches, is disabled in

this example. Instead RTG configured on the Juniper Virtual Chassis Fabric sets up

primary and secondary traffic paths. When trunk links are configured as part of an RTG,

they cannot be part of a spanning tree topology.

Figure 12 shows the RTG test bed topology.

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Initially, ports xe-1/0/2 on the Juniper Virtual Chassis Fabric is defined as the primary

path for the RTG. If a link failure occurs, the Virtual Chassis Fabric will use the other

trunk port on the same switch.

Juniper!commands!

1. Define three VLANs with VLAN IDs of 2001-2003:

admin@VCF> configure

admin@VCF# set vlans v2001 vlan-id 2001

admin@VCF# set vlans v2002 vlan-id 2002

admin@VCF# set vlans v2003 vlan-id 2003

2. Define interfaces xe-1/0/2.0 and xe-1/0/10.0 as VLAN trunk ports allowing traffic

from the three VLANs defined in the previous step:

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Cisco Ex SERIES Uživatelský manuál Strana 51