Operating instructions
182 Cisco Systems Intelligent Gigabit Ethernet Switch Module
Step 3.1.3:
Configure 802.1Q
trunking toward 6500s and add
allowed VLANs for both
EtherChannel and single trunked
link
.
Note that on the line allowing
specific VLANs, there cannot be
any spaces between the numbers
and the commas.
Also note that VLAN 2 is the
native VLAN on these ports by
default.
int port-channel 1
description EtherChannel-To-6500-1
switchport trunk native vlan 2
switchport trunk allowed vlan
2,10,15,20,25,30,35,40,45,50,500
switchport mode trunk
Note that the VLAN numbers might be
wrapped in this document; they should
be on the same line as the command.
The addition of VLAN 500 to the
allowed VLANs above is for carrying the
RSPAN traffic from the Cisco Systems
IGESM to the 6500. VLAN 500 was an
arbitrary selection.
int g0/20
description Trunk-to-CIGESM-2
switchport trunk native vlan 2
switchport trunk allowed vlan
2,10,15,20,25,30,35,40,45,50
switchport mode trunk
Note that the VLAN numbers might be
wrapped in this document; they should
be on the same line as the command.
1. In the top menu bar, click VLAN →
VLAN.
2. Click po1.
3. Click Modify.
4. In the Trunk-Allowed VLAN field,
enter
2,10,15,30,35,40,45,50,500.
5. Click OK.
6. Click Apply or OK.
7. In the top menu bar, click Port →
Port Settings.
8. Scroll down and highlight port
gi0/20.
9. Click Modify.
10. Change the description to
Trunk-to-6500-3.
11. In the top menu bar, click VLAN →
VLAN.
12. Click g0/20.
13. Click Modify.
14. In the Trunk-Allowed VLAN field,
enter
2,10,15,20,25,30,35,40,45,50.
15. Make sure the native VLAN is set
to 2.
16. Click OK.
17. Click Apply or OK.
Important: A limitation in the current
version of CMS exists where it will
always include VLANs 1 and 1001
through 1005. This can cause a
mismatch with the setting on the 6500
side and result in the aggregation going
down. The only solution at this time is to
go into the CLI and run the switchport
trunk allowed vlan command with the
desired settings, as shown in the CLI
section for this step.
Description and comments Actions via IOS CLI for CIGEMS1 Actions via CMS for CIGEMS1