Hi,

Given a simple scenario for multilink ppp ( 2 links) :
2500 ======== 4500

Configuration (refer to : http://www.cisco.com/warp/public/131/7.html)

Cisco 2500 :
hostname 2500
!
username 4500 password 0 foobar
ip subnet-zero
multilink virtual-template 1
!
interface Loopback0
 ip address 20.20.20.1 255.255.255.0
!
interface Virtual-Template1
 ip unnumbered Loopback0
 no ip mroute-cache
 ppp authentication chap
 ppp multilink
!
interface Serial0
 no ip address
 encapsulation ppp
 no fair-queue
 pulse-time 3
 ppp multilink
!
interface Serial1
 no ip address
 encapsulation ppp
 no fair-queue
 pulse-time 3
 ppp multilink
!
router rip
 network 20.0.0.0

Cisco 4500:
hostname 4500
!
username 2500 password 0 foobar
ip subnet-zero
multilink virtual-template 1
!
interface Loopback0
 ip address 20.20.30.1 255.255.255.0
!
interface Virtual-Template1
 ip unnumbered Loopback0
 ppp authentication chap
 ppp multilink
!
interface Serial1
 no ip address
 encapsulation ppp
 no fair-queue
 clockrate 2000000
 pulse-time 3
 ppp multilink
!
interface Serial2
 no ip address
 encapsulation ppp
 no fair-queue
 clockrate 2000000
 pulse-time 3
 ppp multilink
!
router rip
 network 20.0.0.0
!
no ip classless

----------------------------------------------------------------------------
--------------------------------
problem :

4500#sh int virtual-template 1
Virtual-Template1 is down, line protocol is
down -------------------------------> it should be up isn't it ?
  Hardware is Virtual Template interface
  Interface is unnumbered.  Using address of Loopback0 (20.20.30.1)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, loopback not set, keepalive set (10 sec)
  DTR is pulsed for 5 seconds on reset
  LCP Closed, multilink
Closed -------------------------------------------------> closed ? why ?
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 03:33:01
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

4500#sh ppp multilink
Bundle 2500, 2 members, Master link is Virtual-Access1
  0 lost fragments, 0 reordered, 0 unassigned, sequence 0x208/0x20A
rcvd/sent
  0 discarded, 0 lost received, 1/255 load
Member Links: 2 (max not set, min not set)
Serial2
Serial1

4500#sh interfaces virtual-access 1
Virtual-Access1 is up, line protocol is up
  Hardware is Virtual Access interface
  Interface is unnumbered.  Using address of Loopback0 (20.20.30.1)
  MTU 1500 bytes, BW 11544 Kbit, DLY 100000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, loopback not set, keepalive set (10 sec)
  DTR is pulsed for 5 seconds on reset
  LCP Open, multilink Open
  Open: IPCP
  Last input 00:00:14, output never, output hang never
  Last clearing of "show interface" counters 02:42:55
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     281 packets input, 21152 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     284 packets output, 20796 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

4500#
3w1d: Se1 MLP: Forwarded to wrong
interface ------------------------------------------> ?
3w1d: Se2 MLP: Forwarded to wrong
interface ------------------------------------------> ?

2500#sh int virtual-template 1
Virtual-Template1 is down, line protocol is
down -----------------------------------------> same as 4500
  Hardware is Virtual Template interface
  Interface is unnumbered.  Using address of Loopback0 (20.20.20.1)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100000 usec, rely 255/255, load 1/255
  Encapsulation PPP, loopback not set, keepalive set (10 sec)
  DTR is pulsed for 5 seconds on reset
  LCP Closed, multilink
Closed -----------------------------------------------------------> same as
4500
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 03:37:18
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

2500#sh ppp multilink
Bundle 4500, 2 members, Master link is Virtual-Access1
  0 lost fragments, 0 reordered, 0 unassigned, sequence 0x214/0x212
rcvd/sent
  0 discarded, 0 lost received, 1/255 load
Member Links: 2 (max not set, min not set)
Serial1
Serial0

2500#sh int virtual-access 1
Virtual-Access1 is up, line protocol is up
  Hardware is Virtual Access interface
  Interface is unnumbered.  Using address of Loopback0 (20.20.20.1)
  MTU 1500 bytes, BW 3088 Kbit, DLY 100000 usec, rely 255/255, load 1/255
  Encapsulation PPP, loopback not set, keepalive set (10 sec)
  DTR is pulsed for 5 seconds on reset
  LCP Open, multilink Open
  Open: IPCP
  Last input 00:00:24, output never, output hang never
  Last clearing of "show interface" counters 02:45:11
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     286 packets input, 21612 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     287 packets output, 21000 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

2500#
Se0 MLP: Forwarded to wrong interface ---------------------------------> ?
Se1 MLP: Forwarded to wrong interface ---------------------------------> ?

Both serial interfaces on each router are up.
Am I miss something ?

Thank you



**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_________________________________
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

Reply via email to