About martlee2

martlee2 · 02-17-2018

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....

martlee2 · 06-12-2017

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?

martlee2 · 06-10-2017

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?

martlee2 · 05-31-2017

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...

martlee2 · 05-23-2017

is 100% loop free after apply loop guard?

martlee2 · 02-17-2018

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/...

martlee2 · 02-17-2018

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...

martlee2 · 02-17-2018

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 ...

martlee2 · 06-12-2017

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...

martlee2 · 06-12-2017

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 ,...

Member Since	‎12-15-2014 02:44 PM
Date Last Visited	‎06-01-2019 01:36 AM
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how to trace the source of TCN from core switch to interface of access switch?

is it true that spanning tree loop never occur if all links are using port channel?

Any useful topics to automate with onepk?

is it possible to pass to ASA first before inter vlan routing?

is 100% loop free after apply loop guard?

Re: how to trace the source of TCN from core switch to interface of access switch?

Re: how to trace the source of TCN from core switch to interface of access switch?

Re: how to trace the source of TCN from core switch to interface of access switch?

if distribution layer switch

it seems that loop guard