[c-nsp] ASR 1004: Adding T3 Card to LNS Router

[Dominic]

1. I installed a new channelized T3 card on an ASR1004. The router is
already being used as an LNS terminating PPPOE connections, and we just want
to migrate some T1 circuits to the same device.

2. When a  T1 interface is brought up, however, I keep seeing the below
error on the log:

Sep 17 13:03:38 RT2 2258: Sep 17 13:03:38: %LINK-3-UPDOWN: Interface
Serial0/0/2/1:0, changed state to up
Sep 17 13:03:39 RT2 2259: Sep 17 13:03:38: %FMANRP_ESS-4-FULLVAI: Session
creation failed due to Full Virtual-Access Interfaces not being supported.
Check that all applied Virtual-Template and RADIUS features support
Virtual-Access sub-interfaces. swidb= 0x7F19F122C5D0, ifnum= 350
Sep 17 13:03:40 RT2 2260: Sep 17 13:03:38: %LINK-3-UPDOWN: SIP0/0: Interface
Serial0/0/2/1:0, changed state to up

3. The above errors notwithstanding, the t1 interface appears to come up:

	RT2#sh ip int brief | inc Serial0/0/2/1:0
	Serial0/0/2/1:0        192.168.100.1   YES manual up
up

4. However, although the interface is apparently up,  its IP does not appear
in the routing table, and I am unable to ping even the other end of the T1
link! I have combed through the config, and I don't see  how this could
possibly be a routing protocol issue.

RT2#sh ip route 192.168.100.1
% Subnet not in table

5. Now, the IP  on the remote end of the link does show up in the routing
table. However, it  appears to be attached to some virtual interface cloned
from the  virtual template:

RT2#sh ip route 192.168.100.2
Routing entry for 192.168.100.2/32
  Known via "connected", distance 0, metric 0 (connected, via interface)
  Redistributing via eigrp 12125
  Advertised by eigrp 12125
  Routing Descriptor Blocks:
  * directly connected, via Virtual-Access44
      Route metric is 0, traffic share count is 1

#show run int Virtual-Access44
Building configuration...

Current configuration : 143 bytes
!
interface Virtual-Access44
 mtu 1492
 no ip address
 no ip redirects
 ip mtu 1492
 ip tcp adjust-mss 1380
 no logging event link-status
end


Would anyone know what's going on here . why this weird behavior for a
simple t1 interface, and why is the serial interface cloning from the pppoe
template? 
Some config elements below:


T1 Config
--------------
RT2#show run int Serial0/0/2/1:0
interface Serial0/0/2/1:0
 ip address 192.168.100.1 255.255.255.252
encapsulation ppp
end



LNS CONFIG
------------------
sgbp group bondadsl
sgbp member RT1 x.x.x.x
!

virtual-profile virtual-template 1
!
multilink virtual-template 1
multilink bundle-name authenticated
vpdn enable
vpdn multihop
vpdn logging
vpdn logging user
vpdn logging tunnel-drop
vpdn history failure table-size 50
!
vpdn-group nexxia-ADSL
 ! Default L2TP VPDN group
 accept-dialin
  protocol l2tp
  virtual-template 1
 lcp renegotiation always
 l2tp tunnel password 7 xxxx
 ip pmtu
 ip mtu adjust
!

interface Virtual-Template1
 description nexxia-ADSL-STATIC
 mtu 1492
 ip unnumbered x.x.x.x
 no ip redirects
 no ip proxy-arp
 ip verify unicast reverse-path
 ip tcp adjust-mss 1380
 no logging event link-status
 no peer default ip address
 ppp mtu adaptive
 ppp authentication pap chap ispVPDN
 ppp authorization ispVPDN
 ppp accounting ispVPDN
 ppp ipcp dns x.x.x.x x.x.x.x
 ppp multilink
end