Configure additional VLANs and subnets for the uplink ports

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

Example 7-29and 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

Chapter 7. Nortel Networks L2/3 GbESM configuration and network integration 127

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IBM L2/3 manual Configure additional VLANs and subnets for the uplink ports