I have a Cisco 2800 series ISR receiving 2 WAN links a 5Mbps fiber link and a 1.5Mbps T1. The Fiber is connected to the ISR on gigabit Ethernet 0/1, the T1 is on Serial 0 and our LAN side is connected on 0/0 to an HP Procurve Switch 3500-24. I am using BGP with both links, the 5Mbps fiber is setup as our primary and the T1 is the backup link.
I also have 3 remote sites that connect via a Sonicwall VPN 200 and have 3 VOIP phones, one at each site. Each site is on a cable or dsl connection 1.5Mbps or better.
I am having trouble with Quality of Service. During times of high upload and download, VOIP calls suffer, experiencing lag, choppiness and generally bad service. Sometimes during high load the VPN connections will lag and at worst drop connection. Ideally I’d like the VOIP calls and VPN connections to be the priority and impacted as little as possible during any times of high load.
I have some experience with CLI and setting up Cisco routers, I am in no way an expert and have little to no experience working with QoS. I’ve read through Cisco documentation for QoS but I am not sure what would be best. Below is our current configuration the only QoS change I’ve made or tried is turning on fair-queuing.
Any suggestions or solutions to make this work better would be appreciated.
Current configuration : 2077 bytes
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
no logging console
no aaa new-model
multilink bundle-name authenticated
ip address 10.0.0.254 255.255.255.0
ip address 184.108.40.206 255.255.255.252
ip address 220.127.116.11 255.255.255.252
router bgp 50
bgp bestpath as-path ignore
network 10.0.0.0 mask 255.255.255.0
neighbor 18.104.22.168 remote-as 10
neighbor 22.214.171.124 description WANbackup BGP
neighbor 126.96.36.199 ebgp-multihop 10
neighbor 188.8.131.52 update-source Serial0/0/0
neighbor 184.108.40.206 weight 100
neighbor 220.127.116.11 prefix-list WANprimary BGP-out out
neighbor 18.104.22.168 route-map WANbackup BGP-in in
neighbor 22.214.171.124 route-map WANbackup BGP-out out