I am having trouble with our 2801 QOS after changing over to a PPP multilink.
QoS setup is as follows.
policy-map IBC-QOS-ORIGINAL
class IBC-VOIP
priority percent 30
class IBC-GOLD
bandwidth percent 30
class class-default
fair-queue 4096
random-detect
Each ATM is as follows
interface ATM0/1/0
description FNN0264921537
bandwidth 850
no ip address
load-interval 30
no atm ilmi-keepalive
bundle-enable
dsl noise-margin 3
dsl bitswap both
pvc 8/35
vbr-nrt 850 850
tx-ring-limit 3
encapsulation aal5mux ppp dialer
dialer pool-member 1
Dialer is as follows
interface Dialer1
bandwidth 1850
ip address negotiated
ip mtu 1460
ip flow ingress
encapsulation ppp
load-interval 30
dialer pool 1
ppp authentication chap callin
ppp chap hostname xxxxxxx
ppp chap password 7 xxxxxxx
ppp multilink
ppp multilink interleave
ppp multilink fragment delay 20
ppp multilink queue depth qos 3
service-policy output IBC-QOS-ORIGINAL
I am running 12.4(24)T1
show ppp multilink displays
Virtual-Access4
Bundle name: SydneySGBP
Remote Username: SydneySGBP
Remote Endpoint Discriminator: [1] SydneySGBP
Local Username: bega@p2076802.on.net
Local Endpoint Discriminator: [1] bega@p2076802.on.net
Bundle up for 1d18h, total bandwidth 3400, load 5/255
Receive buffer limit 24384 bytes, frag timeout 1000 ms
Interleaving enabled
Dialer interface is Dialer1
0/0 fragments/bytes in reassembly list
933 lost fragments, 64095 reordered
0/0 discarded fragments/bytes, 0 lost received
0x5EA704 received sequence, 0x579C2E sent sequence
Member links: 2 (max not set, min not set)
Vi3, since 1d18h, 4250 weight, 1496 frag size
PPPoATM link, ATM PVC 8/35 on ATM0/3/0
Packets in ATM PVC Holdq: 0, Particles in ATM PVC Tx Ring: 0
Vi2, since 1d18h, 4250 weight, 1496 frag size
PPPoATM link, ATM PVC 8/35 on ATM0/1/0
Packets in ATM PVC Holdq: 0, Particles in ATM PVC Tx Ring: 0
No inactive multilink interfaces
The bundle bandwidth concerns me ? If I change the dialer bandwidth the QOS policies break with the percentages of bandwidth going all wrong.
I also get the virtual-access queueing displaying output drops on the Voice priority class when I am sure that there is not that many calls as we use g729.
Any help or advice anybody can give me is most appreciated.
BTW this is the show policy map on the dialer if it helps.
show policy-map interface dialer 1
Dialer1
Service-policy output: IBC-QOS-ORIGINAL
queue stats for all priority classes:
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 0/0
Class-map: IBC-VOIP (match-any)
1106655 packets, 61662210 bytes
30 second offered rate 0 bps, drop rate 0 bps
Match: dscp ef (46)
1100759 packets, 61185446 bytes
30 second rate 0 bps
Match: ip precedence 5
0 packets, 0 bytes
30 second rate 0 bps
Match: access-group name nodephone
0 packets, 0 bytes
30 second rate 0 bps
Match: access-group name Asterisk
5896 packets, 476764 bytes
30 second rate 0 bps
Priority: 30% (555 kbps), burst bytes 13850, b/w exceed drops: 0
Class-map: IBC-GOLD (match-any)
476057 packets, 86197097 bytes
30 second offered rate 2000 bps, drop rate 0 bps
Match: protocol citrix
113921 packets, 20388798 bytes
30 second rate 0 bps
Match: access-group name CitrixRDP
362135 packets, 65807735 bytes
30 second rate 2000 bps
Match: dscp af11 (10)
1 packets, 564 bytes
30 second rate 0 bps
Match: ip precedence 3
0 packets, 0 bytes
30 second rate 0 bps
Match: access-group name ibc-management
0 packets, 0 bytes
30 second rate 0 bps
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer
