07-29-2003 07:43 PM
Dear All,
I am deploying VoIP between 2 sites using Cisco 3725 routers. Currently, interleaving doesn't work properly which result in voice quality problem only during data trafic. Issuing "show int multilink 1" command, I realise that there is no interleaves even though VoIP call and data are traversing on the link.
Attached here is the info for your reference.
Any idea, please help.
Thanks in advance.
Duc
07-29-2003 07:46 PM
Here is the info:
VNHCMR01#sh call active voice brief
dur hh:mm:ss tx:
IP
delay:
MODEMPASS
last
FR
ATM
Tele
MODEMRELAY info:
speeds(bps): local
Proxy
bw:
tx:
rx:
Telephony call-legs: 1
SIP call-legs: 0
H323 call-legs: 1
MGCP call-legs: 0
Total call-legs: 2
12FF : 5798794hs.1 +202 pid:80 Answer 710 active
dur 00:01:14 tx:3721/74420 rx:3721/74420
Tele 0/0:15:424: tx:74420/74420/0ms g729r8 noise:0 acom:24 i/0:-50/-29 dBm
12FF : 5798794hs.2 +202 pid:81 Originate 81555 active
dur 00:01:14 tx:3721/74420 rx:3721/74420
IP 159.12.56.1:19526 rtt:30ms pl:73890/40ms lost:0/1/6 delay:67/67/107ms g729r8
Telephony call-legs: 1
SIP call-legs: 0
H323 call-legs: 1
MGCP call-legs: 0
Total call-legs: 2
VNHCMR01#sh int mu1
Multilink1 is up, line protocol is up
Hardware is multilink group interface
Description:
Interface is unnumbered. Using address of FastEthernet0/0 (159.12.55.2)
Backup interface Dialer1, failure delay 30 sec, secondary disable delay 30 sec,
kickin load not set, kickout load not set
MTU 1500 bytes, BW 256 Kbit, DLY 100000 usec,
reliability 255/255, txload 33/255, rxload 13/255
Encapsulation PPP, LCP Open, multilink Open
Open: CDPCP, IPCP, loopback not set
DTR is pulsed for 2 seconds on reset
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 00:00:50
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0/0 (size/max total/threshold/drops/interleaves)
Conversations 0/5/64 (active/max active/max total)
Reserved Conversations 1/1 (allocated/max allocated)
Available Bandwidth 56 kilobits/sec
5 minute input rate 14000 bits/sec, 69 packets/sec
5 minute output rate 34000 bits/sec, 72 packets/sec
3062 packets input, 100509 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
3078 packets output, 298192 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
VNHCMR01#sh ppp multilink
Multilink2, bundle name is VNHANR01
Bundle up for 02:47:34, 3/255 load
Receive buffer limit 12192 bytes, frag timeout 1000 ms
0/0 fragments/bytes in reassembly list
0 lost fragments, 0 reordered
0/0 discarded fragments/bytes, 0 lost received
0x145A1 received sequence, 0x21A41 sent sequence
Member links: 1 active, 0 inactive (max not set, min not set)
Se0/2, since 02:47:32, 320 weight, 312 frag size
Multilink1, bundle name is VNBHCR01
Bundle up for 16:07:32, 35/255 load
Receive buffer limit 12192 bytes, frag timeout 1000 ms
0/0 fragments/bytes in reassembly list
0 lost fragments, 0 reordered
0/0 discarded fragments/bytes, 0 lost received
0x2DB8D received sequence, 0x536BD sent sequence
Member links: 1 active, 0 inactive (max not set, min not set)
Se0/1, since 16:07:30, 320 weight, 312 frag size
VNHCMR01#sh run int multilink 1
Building configuration...
Current configuration : 380 bytes
!
interface Multilink1
description
bandwidth 256
ip unnumbered FastEthernet0/0
service-policy output llq
backup delay 30 30
backup interface Dialer1
ip tcp header-compression iphc-format
no ip mroute-cache
ppp multilink
ppp multilink fragment delay 10
ppp multilink interleave
ppp multilink group 1
ip rtp header-compression iphc-format
end
VNHCMR01#show policy-map
Policy Map llq
Class voip-rtp
Strict Priority
Bandwidth 50 (%)
Class voip-sig
Bandwidth 8 (kbps) Max Threshold 64 (packets)
VNHCMR01#show class-map
Class Map match-any class-default (id 0)
Match any
Class Map match-any voip-sig (id 1)
Match access-group name VoIP-SIG
Class Map match-any voip-rtp (id 2)
Match ip rtp 16384 16383
VNHCMR01#
12-02-2003 02:40 PM
Experienced similar problems with 3662 running 12.2, upgraded to 12.3 fixed the problem.
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