Queueing strategy: weighted fair [suspended, using FIFO]

[CPaul123]

This is running on Cisco 2851 router on the serial interface:

What causes the Queueing strategy to suspend and start using FIFO???

thanks!

 

[burtsbees]

post a sh int of the interface in question...
sh int s0/0
for example

Burt

 

[plshlpme]

also please post your policy maps as well

actually better post as much of the config as possible to speed this thing up.

 

[CPaul123]

This is the interface stats:

Serial0/0/1:0 is up, line protocol is up
Hardware is GT96K Serial
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open, multilink Open
Link is a member of Multilink bundle Multilink123, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 02:45:12
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair [suspended, using FIFO]
FIFO output queue 0/40, 0 drops
5 minute input rate 1000 bits/sec, 1 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
9512 packets input, 982427 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
10381 packets output, 991009 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Timeslot(s) Used:1-24, SCC: 1, Transmitter delay is 0 flags

 

[burtsbees]

Post the whole config, minus IP public IP addresses and usernames/passwords.

Burt

 

[CPaul123]

bur-verizon-r1#sh run
Building configuration...

Current configuration : 22480 bytes
!
version 12.4
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
!
hostname bur-verizon-r1
!
boot-start-marker
boot-end-marker
!
card type t1 0 0
card type t1 0 1
security authentication failure rate 3 log
security passwords min-length 6
logging buffered 51200 debugging
no logging console
enable secret 5
!
no aaa new-model
clock timezone London 0
clock summer-time London date Mar 30 2003 1:00 Oct 26 2003 2:00
no network-clock-participate wic 0
no network-clock-participate wic 1
no ip source-route
ip tcp synwait-time 10
!
!
ip cef
!
!
no ip bootp server
no ip domain lookup
ip domain name
ip port-map user-ndm port tcp 1364 description NDM
ip port-map user-VNC port tcp from 5900 to 5905
ip inspect name WAN http
ip inspect name WAN https
ip inspect name WAN tcp
ip inspect name WAN udp
ip inspect name WAN ntp
ip inspect name WAN bgp
ip inspect name WAN icmp
ip inspect name WAN snmp
ip inspect name WAN syslog
ip inspect name WAN echo
ip inspect name WAN sqlnet
ip inspect name WAN ftp
ip inspect name WAN ftps
ip inspect name WAN tftp
ip inspect name WAN telnet
ip inspect name WAN ssh
ip inspect name WAN cuseeme
ip inspect name WAN dns
ip inspect name WAN h323
ip inspect name WAN imap
ip inspect name WAN pop3
ip inspect name WAN rcmd
ip inspect name WAN rtsp
ip inspect name WAN esmtp
ip inspect name WAN streamworks
ip inspect name WAN vdolive
ip inspect name LAN http
ip inspect name LAN https
ip inspect name LAN tcp
ip inspect name LAN udp
ip inspect name LAN icmp
ip inspect name LAN snmp
ip inspect name LAN syslog
ip inspect name LAN echo
ip inspect name LAN sqlnet
ip inspect name LAN ftp
ip inspect name LAN ftps
ip inspect name LAN tftp
ip inspect name LAN telnet
ip inspect name LAN ssh
ip inspect name LAN cuseeme
ip inspect name LAN dns
ip inspect name LAN h323
ip inspect name LAN imap
ip inspect name LAN pop3
ip inspect name LAN rcmd
ip inspect name LAN rtsp
ip inspect name LAN esmtp
ip inspect name LAN streamworks
ip inspect name LAN vdolive
!
!
voice-card 0
no dspfarm
!
!
!
!
controller T1 0/0/0
framing esf
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 0/0/1
framing esf
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 0/1/0
framing esf
linecode b8zs
!
controller T1 0/1/1
framing esf
linecode b8zs
!
!
!
!
!
interface Multilink123
description Verizon Business
ip address 255.255.255.252
ip access-group 110 in
ip inspect WAN out
no peer neighbor-route
ppp chap hostname
ppp multilink
ppp multilink fragment disable
ppp multilink links minimum 1
ppp multilink group 123
!
interface FastEthernet0/0
description Burlington LAN Subnet 255.255.255.0
ip address 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip accounting output-packets
ip inspect LAN out
ip route-cache flow
duplex auto
speed auto
no mop enabled
!
interface FastEthernet0/1
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip route-cache flow
shutdown
duplex auto
speed auto
no mop enabled
!
interface Serial0/0/0:0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
encapsulation ppp
ppp chap hostname
ppp multilink
ppp multilink group 123
!
interface Serial0/0/1:0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
encapsulation ppp
ppp chap hostname
ppp multilink
ppp multilink group 123
!
router bgp 1
no synchronization
bgp log-neighbor-changes
redistribute connected
redistribute static
neighbor remote-as 65000
no auto-summary
!
!
!
no ip http server
ip http access-class 1
ip http authentication local
ip http secure-server
ip http timeout-policy idle 5 life 86400 requests 10000
!
logging
access-list 110 remark Deny All Log
access-list 110 deny ip any any log
snmp-server community redorange RO 2
snmp-server location
snmp-server contact
no cdp run
!
!
!
!
control-plane

^C
!
line con 0
line aux 0
line vty 0 4
transport input ssh
line vty 5 15
transport input ssh
!
scheduler allocate 20000 1000
!
end

 

[lerdalt]

can you post a show interface multilink123 as well?

 

[CPaul123]

Multilink123 is up, line protocol is up
Hardware is multilink group interface
Description: Verizon Business MPLS Circui
Internet address is
MTU 1500 bytes, BW 3072 Kbit, DLY 100000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open, multilink Open
Open: IPCP, loopback not set
Keepalive set (10 sec)
DTR is pulsed for 2 seconds on reset
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 05:44:49
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 3000 bits/sec, 4 packets/sec
5 minute output rate 4000 bits/sec, 3 packets/sec
32737 packets input, 4756871 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
36630 packets output, 4477367 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions

 

[burtsbees]

Queueing strategy: fifo"

Have you tried changing this to weighted fair on Multilikn123?

Burt

 

[plshlpme]

i think thats all thats happening here is that since youve moved those physical interfaces into the multilink group.. the queuing is being done at that point to control the load balancing of the links better...

 

[lerdalt]

I'd have to agree. The serial interfaces are probably trying to do weighted fair queueing by default, and the multilink is using fifo.