02-10-2025 07:55 AM
Hi everyone, I'm a student and new to Extreme Fabric.
I'm working on a lab where VLAN 10 and VLAN 20 need to communicate with each other.
I have configured IS-IS, and the switches have formed adjacencies. The topology consists of multiple edge switches (EDGE1, EDGE2, EDGE3, and EDGE4) and backbone switches (BB1 and BB2). The VLANs are mapped to I-SIDs as follows:
The I-SIDs are visible on the switches, but I am unable to ping between any of them. My main question is:
How will the VLANs be routed across the fabric without using VRF or VSN?
Any help would be appreciated!
Solved! Go to Solution.
02-11-2025 05:41 AM
Hi Ahmed,
which version do yo use? I am not sure if the dataplane support is already fully included in gns3 fabric switches. In the past there was only controlplane support.
regards
Marlon
02-11-2025 08:41 AM
sorry i'm not aware of the features of GNS releases
02-11-2025 05:41 AM
Hi Ahmed,
which version do yo use? I am not sure if the dataplane support is already fully included in gns3 fabric switches. In the past there was only controlplane support.
regards
Marlon
02-12-2025 04:20 AM
Until you are doing some pings from Fabric Switches it's OK but when you try to connect external hosts then dataplane is not working. vIST and SMLT with EXOS v-switches is also working unstable and unreliable
@Ahmed_101 : Use Globar Routing Table (this feature doesn't require using VRFs). You need to enable IP-Shortcuts with route redistribution policies on nodes with L3 interfaces
02-11-2025 05:38 AM
Hi Ahmed,
I dont understand the reason VLAN10 and VLAN 20 share the same i-sid, doing that you are connected them on the same broadcast domain, so is like the same VLAN.
Configure each vlan to a diferente i-sid, for example:
vlan i-sid 10 200010
vlan i-sid 20 200020
vlan i-sid 50 200050
Configure it in all BEB and BCB where VLANs are deployed and extend all to one BCB.
Then, on BCB, configure L3 int, for example:
int vlan 10
ip address 192.168.10.1 255.255.255.0
int vlan 20
ip address 192.168.20.1 255.255.255.0
int vlan 50
ip address 192.168.50.1 255.255.255.0
It must be works.
Regards
EF