04-24-2001 08:57 AM - edited 03-12-2019 11:25 AM
Hello,
I have 2 routers 1750-4V (1 FXO & 1 FXS each other) and because I have
a low speed link (64 Kbps) I have to use QoS, and define Voip traffic with
high priority. I define multilink ppp, and ip rtp, like :
> ip rtp header-compression iphc-format
> ip rtp priority 16384 16383 40
So when there is Voip traffic I want to reserve 40Kbps for it, but when
there is no Voip traffic, I want to have all the 64 Kbps available for data
traffic, and feel is not working like that, because is too slow.
My question is, this rtp command reserve a fixed bandwidth,although is
there not Voip traffic ?
So which other QoS can I use to reserve 40Kbps only when I have Voip
traffic, and have all the 64 Kbps available when there is only data traffic
?
Thanks a lot for your suggestions.
Regards,
Anacelia
04-25-2001 08:38 AM
I would implement Low Latency Queuing...take a look: Be sure to have at least 12.1.3T loaded on your 1750.
version 12.1
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log datetime msec localtime
service password-encryption
!
hostname 1750-LIVONIA-R1
!
logging rate-limit console 10 except errors
enable secret 5 $1$LGwO$AGYLm4SQlWaa1c9vwnYVO1
!
username 3640-LISLE-R1 password 7 060506324F41
memory-size iomem 25
ip subnet-zero
no ip finger
no ip domain-lookup
!
!
class-map match-all VOICE
match access-group 102
!
!
policy-map QOS
class VOICE
priority 128 (<--the bandwidth you want allocated to voice calls)
class class-default
fair-queue
!
isdn switch-type basic-dms100
call rsvp-sync
!
!
!
!
!
!
!
!
interface BRI0
description Backup to Frame Relay Lisle
ip address 172.20.253.18 255.255.255.252
encapsulation ppp
dialer idle-timeout 600
dialer wait-for-carrier-time 10
dialer map ip 172.20.253.17 name 2610-LISLEFRAME-R2 broadcast 16303530368
dialer map ip 172.20.253.17 name 2610-LISLEFRAME-R2 broadcast 16303530361
dialer hold-queue 75
dialer load-threshold 128 either
dialer-group 1
isdn switch-type basic-dms100
isdn spid1 73463201230101
isdn spid2 73463201240101
ppp authentication chap
ppp multilink
!
interface FastEthernet0
ip address 172.20.66.254 255.255.255.0
speed auto
!
interface Serial0
no ip address
encapsulation frame-relay
no ip mroute-cache
cdp enable
frame-relay traffic-shaping
frame-relay qos-autosense
!
interface Serial0.1 point-to-point
ip address 172.20.254.10 255.255.255.252
frame-relay interface-dlci 30
class FRAME
frame-relay ip rtp header-compression
!
router eigrp 1
network 172.20.0.0
default-metric 64 200 255 1 1500
distribute-list 1 out
no auto-summary
eigrp log-neighbor-changes
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.20.253.17 240
no ip http server
!
!
map-class frame-relay FRAME
frame-relay cir 256000
frame-relay bc 2560
frame-relay be 0
frame-relay mincir 128000
no frame-relay adaptive-shaping
service-policy output QOS
frame-relay fragment 320
access-list 1 deny 172.20.253.0 0.0.0.255
access-list 1 permit any
access-list 100 deny eigrp any any
access-list 100 permit ip any any
access-list 102 permit udp any any range 16384 32767
access-list 102 permit tcp any eq 1720 any
access-list 102 permit tcp any any eq 1720
dialer-list 1 protocol ip list 100
!
!
line con 0
password 7 151C5902123E
login
transport input none
line aux 0
password 7 011D540A4D1F
login
modem InOut
modem autoconfigure type usr_sportster
speed 115200
flowcontrol hardware
line vty 0 4
password 7 030A0905101B
login
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