Hi all,
I am almost embarrassed to post this, but in the spirit of “the
only stupid question, is the one you don’t ask….”, here is what I did in a lab:
SW1
Hostname Switch1
Vtp mode server
Vtp domain ipexpert
Vtp password ipexpert
Vtp version 2
Exit
Vlan 2,3,4,5,6,7,8,9
Exit
End
Wr
ON SW2 – SW4
Hostname Switch[2-4]
Vtp mode client
Vtp domain ipexpert
Vtp password ipexpert
Vtp version 2
exit
ON ALL 4 SWITCHES
Default int fast0/19
Default int fast0/20
Default int fast0/21
Default int fast0/22
Default int fast0/23
Default int fast0/24
Int r f0/19 – 24
Shut
Sw tru en dot
Sw mo tru
Sw non
No shut
All trunks came up (sho int trunk), sh vtp pass on all
switches showed correct password (and they were all pasted in from the same
line on notepad), show vtp status showed all info you’d expect, but SW2 – SW4
showed an “MD5 error” on all trunks.
Vlans were not propagated from SW1. I bounced trunks, I converted to
transparent
mode and back to client or server as appropriate.I changed domains to a dummy
value then back again. Nothing made any
difference.
Eventually, I reload all four switches, and that fixed it.
My question is: what exactly causes this MD5 error, other
than the passwords being different? Is
there anything I missed? George
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