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Chapter 7. Nortel Networks L2/3 GbESM configuration and network integration 127
Configure additional VLANs and subnets for the uplink ports
Example 7-29 and Example 7-30 on page 129 use a VLAN and associated subnet for each
pair of switches which are connected. VLAN 35 connects GbESM1 (.243) with Core1 (.245),
and similarly for VLANs 36, 45, and 46. The port aggregation (trunking) used in the previous
samples is used here as well. The GbESMs still require default gateways on the VLANs
which connect them to the Core switches. This is expected to change in future software
releases.
Example 7-29 Additional VLANs and Subnets for uplink ports - GbESM
/* Configuration below for GbESM 1 (address .243)
/* turn layer 3 functions on - and define default gateways
/cfg/l3/frwd/on
/cfg/l3/gw 1
addr 10.35.0.245
ena
/cfg/l3/gw 2
addr 10.36.0.246
ena
/* create new vlans for uplink ports and reassign ports as needed
/cfg/l2/vlan 35/ena
/cfg/l2/vlan 36/ena
/cfg/port ext1/tag dis
/cfg/port ext2/tag dis
/cfg/port ext3/tag ena
/cfg/port ext5/tag dis
/cfg/port ext6/tag dis
/cfg/l2/vlan 35/def ext1 ext2
/cfg/l2/vlan 36/def ext5 ext6
/cfg/l2/vlan 10/add ext3
/cfg/l2/vlan 20/add ext3
/* create VLAN interfaces
/cfg/l3/if 35
ena
vlan 35
addr 10.35.0.243
mask 255.255.255.0
/cfg/l3/if 36
ena
vlan 36
addr 10.36.0.243
mask 255.255.255.0
/* the below lines clean up unused items from the previous sample
/cfg/vlan 46/del
/cfg/l3/if 46/del
/cfg/l3/vrrp/vrid 3/del
Note: The configuration instructions that follow build in part on the configuration in section
7.8.1, “Layer 3 sample configuration with static routing and VRRP” on page 109