02-25-2010 02:36 PM
Greetings,
I have some 861 routers where I want to send VoIP traffic over an EZVPN and keep all other data traffice over the WAN. The 861 seems to have a very limited set of QoS features. I can setup class-maps by presedence, vlan or ip rtp, and can't really 'match protocol sip/rtp'.
What is the best way to configure this on the WAN interface that will prioritize all the tunnel and tunne/voip traffic? Do I have to apply a policy to the virtual-template and the WAN separately?
Thanks,
David
02-25-2010 02:52 PM
Hi David,
Since the only traffic pass through EZVPN is your voice traffic, you can just match ESP packet and give it priority on your WAN interface.
HTH,
Lei Tian
02-25-2010 03:07 PM
Sounds good. Do you know the best way to match ESP packets on an 861 with limited QoS features?
match options are:
Router(config-cmap)#match ?
access-group Access group
any Any packets
class-map Class map
cos IEEE 802.1Q/ISL class of service/user priority values
destination-address Destination address
discard-class Discard behavior identifier
flow Flow based QoS parameters
fr-de Match on Frame-relay DE bit
fr-dlci Match on fr-dlci
input-interface Select an input interface to match
ip IP specific values
mpls Multi Protocol Label Switching specific values
not Negate this match result
packet Layer 3 Packet length
precedence Match Precedence in IP(v4) and IPv6 packets
protocol Protocol
qos-group Qos-group
source-address Source address
vlan VLANs to match
and
Router(config-cmap)#match protocol ?
arp IP ARP
bridge Bridging
cdp Cisco Discovery Protocol
compressedtcp Compressed TCP (VJ)
ip IP
ipv6 IPV6
pad PAD links
pppoe PPP over Ethernet
vofr voice over Frame Relay packets
02-25-2010 03:13 PM
class-map EZVPN
match access EZVPN
ip access ex EZVPN
per ESP any any
HTH,
Lei Tian
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