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Network transfer from L2 to L3

snowbars
Level 1
Level 1

Hi. I have a fully redundant L2 network. There are 4 main switches. All vlan interfaces have been created on switches 1 and 2. Then they pass through to the switches connected to 3 and 4.
The case is now. Completely separate the segment switches 1-2 from 3-4. So that 1-2 is a separate L3 and 3-4 is a separate L3, respectively, the vlan interfaces will be terminated on 1-2 and separately on 3-4. To begin, I want to test this whole scheme using static routing and I can’t figure out how to configure routing if the switches are connected via etherchannel?

I did everything that came to my mind. I created interface vlan 10 on all 4 main switches and added networks: 10.0.0.1, 10.0.0.2, 10.0.0.3, 10.0.0.4. Of course, they all see each other, because... connected directly to each other.

switch1# ip route 10.10.11.0/24 10.0.0.4/32 5
switch1# ip route 10.10.11.0/24 10.0.0.3/32

switch2# ip route 10.10.11.0/24 10.0.0.4/32 5
switch2# ip route 10.10.11.0/24 10.0.0.3/32

switch3# ip route 10.10.10.0/24 10.0.0.2/32 5
switch3# ip route 10.10.10.0/24 10.0.0.1/32

switch4# ip route 10.10.10.0/24 10.0.0.4/32 5
switch4# ip route 10.10.10.0/24 10.0.0.3/32

1 Accepted Solution

Accepted Solutions

snowbars
Level 1
Level 1

Just finished writing here and checked everything again..... and found an error. Everything was done correctly, but one of the vlan interface remained in shu, because By default, all vlan interfaces are shutdown. I picked it up and everything worked. It turns out that etherchannel is important for ALL interfaces to be in working order, otherwise ping does not work.

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1 Reply 1

snowbars
Level 1
Level 1

Just finished writing here and checked everything again..... and found an error. Everything was done correctly, but one of the vlan interface remained in shu, because By default, all vlan interfaces are shutdown. I picked it up and everything worked. It turns out that etherchannel is important for ALL interfaces to be in working order, otherwise ping does not work.

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