11-18-2013 10:52 AM - edited 03-07-2019 04:39 PM
I want to connect 45xx fiber port to Alcatel's port
Alcatels's port is defined as trunk allowing to pass tagged vlan packet
and at the same time defined as member of L3 routing VLAN
Can I do the same on 45xx fiber port
Here is Alcatels config;
ip interface "vlan-100" address 10.12.0.2 mask 255.255.255.252 vlan 100 ifindex 10
ip interface "vlan-301" address 10.12.5.1 mask 255.255.255.0 vlan 301 ifindex 1
ip interface "vlan-302" address 10.12.2.1 mask 255.255.255.0 vlan 302 ifindex 2
vlan 100 802.1q 5/1 "TAG PORT 5/1 VLAN 100"
vlan 200 802.1q 5/1 "TAG PORT 5/1 VLAN 200"
vlan 201 802.1q 5/1 "TAG PORT 5/1 VLAN 201"
ip static-route 0.0.0.0/0 gateway 10.12.0.1 metric 1
Does this Config works on Cisco?
interface GigabitEthernet5/1
description Trunk Connection
switchport
switchport trunk encapsulation dot1q
switchport access vlan 100
switchport trunk native vlan 100
switchport trunk allowed vlan 200,201
switchport mode trunk
interface Vlan100
ip address 10.12.0.1 255.255.255.252
interface Vlan200
no ip address
interface Vlan201
no ip address
11-18-2013 11:14 AM
The mode on the port is set to trunk so it will be a trunk. You are only allowing vlans 200 and 201 on the trunk link so vlan 100 will not be allowed on the 4500 end of the trunk link. Also you are making vlan 100 the untagged (native) vlan on the 4500 end but it looks like the Alcatel switch will be tagging vlan 100 so that won't work either.
What exactly are you wanting to do. When you say make the port a member of a L3 routed vlan, why can you not just add vlan 100 to the allowed vlan list on the trunk and use another vlan as the the native vlan on the 4500 ?
Jon
11-18-2013 11:15 AM
Hi,
you don't need this line because the interface is configured as a trunk:
switchport access vlan 100
I'm not familiar with the Alcatel CLI but I think VLAN 100 is send tagged on the trunk?
If so, configuring VLAN 100 as the native VLAN (untagged) will not work:
switchport trunk native vlan 100
You'll also need to allow VLAN 100 on the trunk:
switchport trunk allowed vlan 200,201
And don't forget to create the (Layer-2) VLANs:
vlan 100
name xxx
vlan 200
name xxx
vlan 201
name xxx
Hope that helps
Rolf
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