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how to trace the source of TCN from core switch (Catalyst 4500 L3 Switch Version 03.06.05.E, cisco WS-C4500X-32 (MPC8572) processor (revision 9)) to interface of access switch?
MST0 Spanning tree enabled protocol mstp Root ID Priority 0 Address 0008....
is it true that spanning tree loop never occur if all links are using port channel?
if it is true, does it mean that no need to apply loop guard and root guard for all port channels?
besides automate query and configure and https://blogs.cisco.com/enterprise/five-cool-router-tricks-with-onepk,
Any more useful topics to automate with onepk?
would like to pass traffic to ASA first before inter vlan routing at 2901 router because I would like to control vlan 2 can access vlan 3 but
not allow vlan 3 to access vlan 2
2960 vlan 2 switch 1 ---> 2960 switch 0 ---> ASA ---> 2901 router 0 --> 2...
Am my finding correct?
is the TCN coming from
cps01cr01-private# sh int Ethernet3/2
cps01as38#sh int TenGigabitEthernet1/1TenGigabitEthernet1/1 is up, line protocol is up (connected)Description: cps01cr01-pri-T3/1
cps01cr01-private# sh int Eth3/...
then i investigate number of BPDU sent
and find maximum sent is 570906520
and find maximum received is 403483675
as juniper vendor said TCN sent from cisco , cisco support said TCN sent from juniper
what does this sent mean?
do it mean "sent to t...
i attached the result i searched.
but there are many
i sorted the 5 largest changes
and
i highlighted smallest last changes occurred time with yellow
i am not sure 00:00:00 mean nothing occur or the lastest
using latest change occur find
Port ...
if distribution layer switch is juniper , access switch is cisco
is it true that cisco switch not need to configure loop guard at etherchannel which are root port ?
if distribution layer switch is cisco , access switch is juniper
is it true that cis...
it seems that loop guard should not enable in port channel because it will block the whole logical link
if loop guard should not enable in port channel,
then can it imply loop never occur in port channel?
if distribution layer switch is juniper ,...
