cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
870
Views
0
Helpful
4
Replies

Routing between VLAN on different switches

s-santhosh
Beginner
Beginner

Please refer to below network diagram for my present situation

Problem: Tracing to VLAN 100/200 - IP Address from VLAN 400/500 is routed via MPLS cloud, running around 3 countries and reaching to VLAN 100/200. This is resulting in bad network performance. Also this is due to default route on Network B cores 0.0.0.0 0.0.0.0 <gateway_ip>

Between Network A & B core switches connected interfaces are trunk port with VLAN 100, 200, 400, 500 are allowed.

Question: How can I influance the traffic to VLAN 100/200 from VLAN 400/500 via connected trunk ports instead of across the MPLS cloud.

All cores are layer 3 devices

1 Accepted Solution

Accepted Solutions

You can do a 'no switchport' on an interface that's marked trunk in your diagram. Then configure an IP address - a /30 e.g on this interface and enable routing protocols such as OSPF.

Thanks.

View solution in original post

4 Replies 4

rais
Rising star
Rising star

You can create a L3 link between two top switches with a common ip subnet and run some routing protocol or static routes. The same can be done to the other trunk.

HTH.

Thanks Rais,

You mean configuring VLAN 400 as layer 3 interface in Network A - Core 1 and create route statement in Network B core 1 to point this gateway for VLAN 100 and 200.

You can do a 'no switchport' on an interface that's marked trunk in your diagram. Then configure an IP address - a /30 e.g on this interface and enable routing protocols such as OSPF.

Thanks.

Thanks Rais,

It worked.....

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: