07-02-2008 12:08 PM - edited 03-03-2019 10:34 PM
We have 6 new T1's coming in on a T1 card on a 7206. We are having a problem with PPP multilink on this card. Here is the configuration for the multilink and each of the T1s:
interface Multilink1
ip address 10.105.255.174 255.255.255.252
ppp multilink
multilink-group 1
interface Serial1/0:0
bandwidth 1536
no ip address
ip load-sharing per-packet
encapsulation ppp
fair-queue
ppp multilink
multilink-group 1
!
Here is the ppp debugs out of the log:
00:14:17: Se1/0:0 PPP: Phase is ESTABLISHING, Passive Open [0 sess, 1 load]
00:14:17: Se1/0:0 LCP: State is Listen
00:14:17: Se1/0:0 LCP: I CONFREQ [Listen] id 199 len 23
00:14:17: Se1/0:0 LCP: MagicNumber 0x8526341E (0x05068526341E)
00:14:17: Se1/0:0 LCP: MRRU 1500 (0x110405DC)
00:14:17: Se1/0:0 LCP: EndpointDisc 1 Core-1 (0x130901436F72652D31)
00:14:17: Se1/0:0 LCP: O CONFREQ [Listen] id 111 len 22
00:14:17: Se1/0:0 LCP: MagicNumber 0x90BF199B (0x050690BF199B)
00:14:17: Se1/0:0 LCP: MRRU 1524 (0x110405F4)
00:14:17: Se1/0:0 LCP: EndpointDisc 1 ABRHQ (0x1308014142524851)
00:14:17: Se1/0:0 LCP: O CONFACK [Listen] id 199 len 23
00:14:17: Se1/0:0 LCP: MagicNumber 0x8526341E (0x05068526341E)
00:14:17: Se1/0:0 LCP: MRRU 1500 (0x110405DC)
00:14:17: Se1/0:0 LCP: EndpointDisc 1 Core-1 (0x130901436F72652D31)
00:14:17: Se1/0:0 LCP: I CONFACK [ACKsent] id 111 len 22
00:14:17: Se1/0:0 LCP: MagicNumber 0x90BF199B (0x050690BF199B)
00:14:17: Se1/0:0 LCP: MRRU 1524 (0x110405F4)
00:14:17: Se1/0:0 LCP: EndpointDisc 1 ABRHQ (0x1308014142524851)
00:14:17: Se1/0:0 LCP: State is Open
00:14:17: Se1/0:0 MLP: Request add link to bundle
00:14:17: Se1/0:0 PPP: Phase is VIRTUALIZED [0 sess, 1 load]
00:14:17: Se1/0:0 MLP: Adding link to bundle
00:14:17: Mu1 MLP: Added first link Se1/0:0 to bundle Core-1
00:14:17: Se1/0:0 LCP: I TERMREQ [Open] id 200 len 4
00:14:17: Mu1 MLP: No previous member for idle link in 'Core-1'
00:14:17: Se1/0:0 LCP: O TERMACK [Open] id 200 len 4
00:14:17: Se1/0:0 MLP: Request drop link from bundle Mu1
00:14:17: Se1/0:0 PPP: Phase is TERMINATING [0 sess, 1 load]
00:14:17: Mu1 MLP: Removing link Se1/0:0 from bundle Core-1
00:14:17: Mu1 MLP: Dropped link Se1/0:0 from bundle Core-1
00:14:17: Mu1 MLP: Dropped last link, removing bundle Core-1
00:14:17: Mu1 MLP: Removing bundle 'Core-1'
00:14:17: Mu1 LCP: State is Closed
00:14:17: Se1/1:0 LCP: TIMEout: State TERMsent
00:14:17: Se1/1:0 LCP: State is Closed
00:14:17: Se1/1:0 PPP: Phase is DOWN [0 sess, 1 load]
When setting up the link as an HDLC link or even PPP without multilink, the connection is fine. Only when the link is changed to a multilink do we see this. The multilink will bounce (coming up for less than a second then going back down.) We see the interfaces in the multilink as up/down.
Any recommendations?
Greg
Solved! Go to Solution.
07-02-2008 03:13 PM
Hi, since the termination request is received by the router you sent debug and config, I think the same info would be needed about the other router.
07-02-2008 01:11 PM
Greg
I am curious about what appears to be 2 names for multilink that show up in the output that you posted:
00:14:17: Se1/0:0 MLP: Request add link to bundle
00:14:17: Se1/0:0 PPP: Phase is VIRTUALIZED [0 sess, 1 load]
00:14:17: Se1/0:0 MLP: Adding link to bundle
00:14:17: Mu1 MLP: Added first link Se1/0:0 to bundle Core-1
00:14:17: Se1/0:0 LCP: I TERMREQ [Open] id 200 len 4
00:14:17: Mu1 MLP: No previous member for idle link in 'Core-1'
00:14:17: Se1/0:0 LCP: O TERMACK [Open] id 200 len 4
00:14:17: Se1/0:0 MLP: Request drop link from bundle Mu1
Perhaps a more full view of the router config might shed a bit more light on the issue.
HTH
Rick
07-02-2008 01:17 PM
Building configuration...
Current configuration : 4276 bytes
!
! Last configuration change at 09:12:55 CST Wed Jun 25 2008
! NVRAM config last updated at 09:16:04 CST Wed Jun 25 2008
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
clock timezone CST -6
ip subnet-zero
no ip source-route
ip flow-cache timeout active 1
ip cef
!
!
!
no mpls traffic-eng auto-bw timers frequency 0
call rsvp-sync
!
!
!
!
!
!
controller T1 1/0
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 1/1
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 1/2
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 1/3
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 1/4
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 1/5
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 1/6
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 1/7
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
!
class-map match-all video1
match access-group 102
class-map match-all voice1
match access-group 101
!
!
policy-map video-police
class voice1
bandwidth 384
class video1
bandwidth 384
class class-default
fair-queue 64
queue-limit 20
!
!
!
interface Loopback0
ip address 10.253.0.65 255.255.255.255
no clns route-cache
!
interface Multilink1
description 3MB to Colo4Dallas
ip address 10.105.255.174 255.255.255.252
ip flow ingress
ip nbar protocol-discovery
service-policy output video-police
ppp multilink
multilink-group 1
no clns route-cache
!
interface Serial1/0:0
bandwidth 1536
no ip address
ip flow ingress
encapsulation ppp
ppp multilink
multilink-group 1
no clns route-cache
!
interface Serial1/1:0
bandwidth 1536
no ip address
ip flow ingress
encapsulation ppp
ppp multilink
multilink-group 1
no clns route-cache
!
interface Serial1/2:0
bandwidth 1536
no ip address
ip flow ingress
encapsulation ppp
ppp multilink
multilink-group 1
no clns route-cache
!
interface Serial1/3:0
bandwidth 1536
no ip address
ip flow ingress
encapsulation ppp
ppp multilink
multilink-group 1
no clns route-cache
!
interface Serial1/4:0
bandwidth 1536
no ip address
ip flow ingress
encapsulation ppp
ppp multilink
multilink-group 1
no clns route-cache
!
interface Serial1/5:0
bandwidth 1536
no ip address
ip flow ingress
encapsulation ppp
ppp multilink
multilink-group 1
no clns route-cache
!
interface Serial1/6:0
bandwidth 1536
no ip address
ip flow ingress
encapsulation ppp
ppp multilink
multilink-group 1
no clns route-cache
!
interface Serial1/7:0
bandwidth 1536
no ip address
ip flow ingress
encapsulation ppp
ppp multilink
multilink-group 1
no clns route-cache
!
interface FastEthernet2/0
bandwidth 100000
ip address 10.105.50.1 255.255.255.0
ip flow ingress
no ip route-cache cef
no ip route-cache
shutdown
duplex full
no clns route-cache
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.105.255.173
ip route 10.253.0.2 255.255.255.255 10.105.255.173
ip flow-export source FastEthernet2/0
ip flow-export version 5
ip flow-export destination 10.50.66.218 9996
!
ip http server
!
!
!
logging trap debugging
logging 10.50.66.218
access-list 101 permit ip any any precedence critical
access-list 102 permit ip any any precedence flash-override
!
snmp-server community publ1c RW
snmp-server community public RO
snmp-server enable traps tty
snmp-server enable traps sonet
!
!
control-plane
!
!
dial-peer cor custom
!
!
!
!
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
login
!
!
end
I took a couple things out- but this is the config.
07-02-2008 03:13 PM
Hi, since the termination request is received by the router you sent debug and config, I think the same info would be needed about the other router.
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