Which physical ATM link it takes?

[frank.lu]

Here is the PNNI topology from one of the ASP:

USKEN15DRASP#sh atm pnni topology node 13

Node 13 (name: USUNI13DRASP, type: LS1015, ios-version: 12.0)

Node ID..: 56:160:47.009181000000009086003401.009086003401.00

Node AESA: 47.009181000000009086003401.009086003401.01

Leadership Priority: 0, Claims PGL: No, Transit Calls: Allowed

Ancestor: No, Nodal Representation: Simple, Connected: Yes

More P2MP Branch Points: Yes, Non-Transit For PGL Election: No

status link type local port remote port neighbor

~~~~~~ ~~~~~~~~~ ~~~~~~~~~~~~~ ~~~~~~~~~~~~~ ~~~~~~~~

up hrz ATM12/0/1 ATM12/0/1 USUNI01DRASP

up hrz ATM12/1/0 ATM12/1/0 USSPR011RASP1

up hrz ATM12/1/1 ATM12/1/0 USCRN012RASP2

USKEN15DRASP#

There are 3 physical links from USUNI13DRASP to USKEN15DRASP, how can I find out which physical ATM link it takes from USUNI13DRASP to USKEN15DRASP?

[frank.lu]

OK... I need to enable the Background Routes in order to see the physical link it takes, but after I setup the Link Selection, it is still showing the alternate link as first choose as following, what did I do wrong?

USUNI13DRASP#sh run int atm 12/1/0

Building configuration...

Current configuration:

!

interface ATM12/1/0

description DS-3 to Springfield Main Comm room 1

no ip address

no ip directed-broadcast

logging event subif-link-status

no atm ilmi-keepalive

atm pnni link-selection cbr alternate

atm pnni link-selection vbr-rt alternate

atm pnni link-selection vbr-nrt alternate

atm pnni link-selection abr alternate

atm pnni link-selection ubr alternate

end

USUNI13DRASP#

USUNI13DRASP#sh atm pnni background routes 12

Background Routes From CBR/AW Table

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

3 Routes To Node 12

1. Hops 3. 1:ATM12/1/0 -> 15:ATM12/0/2 -> 14:ATM12/1/0 -> 12

->: aw 15120 cdv 414 ctd 504 acr 42498 clr0 10 clr01 10

<-: aw 15120 cdv 414 ctd 504 acr 42498 clr0 10 clr01 10

2. Hops 3. 1:ATM12/0/1 -> 13:ATM12/0/2 -> 11:ATM1/0/1 -> 12

->: aw 15120 cdv 414 ctd 462 acr 147743 clr0 10 clr01 10

<-: aw 15120 cdv 414 ctd 462 acr 147743 clr0 10 clr01 10

3. Hops 3. 1:ATM12/0/1 -> 13:ATM12/0/2 -> 11:ATM0/1/0 -> 12

->: aw 15120 cdv 414 ctd 462 acr 147743 clr0 10 clr01 10

<-: aw 15120 cdv 414 ctd 462 acr 147743 clr0 10 clr01 10

Background Routes From CBR/CDV Table

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

3 Routes To Node 12

1. Hops 3. 1:ATM12/1/0 -> 15:ATM12/0/2 -> 14:ATM12/1/0 -> 12

->: aw 15120 cdv 414 ctd 504 acr 42498 clr0 10 clr01 10

<-: aw 15120 cdv 414 ctd 504 acr 42498 clr0 10 clr01 10

2. Hops 3. 1:ATM12/0/1 -> 13:ATM12/0/2 -> 11:ATM1/0/1 -> 12

->: aw 15120 cdv 414 ctd 462 acr 147743 clr0 10 clr01 10

<-: aw 15120 cdv 414 ctd 462 acr 147743 clr0 10 clr01 10

3. Hops 3. 1:ATM12/0/1 -> 13:ATM12/0/2 -> 11:ATM0/1/0 -> 12

->: aw 15120 cdv 414 ctd 462 acr 147743 clr0 10 clr01 10

<-: aw 15120 cdv 414 ctd 462 acr 147743 clr0 10 clr01 10

...