![]() ![]() I have fixed the mismatched interface names on R3, but I still have the same problem. Further troubleshooting isolated the specific command that causes the vlan 25 to be Up/Down to this command. Turning keepalive tracking off while the interface has already marked itself down isnt going to bring it up. It should show up/up at this point and hold that state indefinitely (for a GE, anyhow). Tested on GNS3 0.8.1 VBOX edition with Cisco IOS Software, 2600 Software (C2691-ADVENTERPRISEK9-M), Version 12.4(15)T14, RELEASE SOFTWARE (fc2).Ĭheck your IP addressing careful again. Issue the shutdown first, then issue the 'no keepalive' command, then bring the interface back up. ![]() Open your topology and check names of interfaces. In picture names were reversed, I marked it with red rings in pic. BUT, you mismatched interface names on R3, in your topology R3 interface S0/0 looks to R1 and S0/1 to R2.
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