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7206VXR as LNS, DSL clients and QoS

Aurelien Bailly
Level 1
Level 1

Hello,

I have 7206VXR acting as LNS. Clients received config via Radius.

I am trying to set QoS and priorize ping (for testing) :

access-list 150 permit icmp any any

I shape the Virtual-Access interface in parent class :

policy-map Parent_test_1

class class-default

  shape average percent 90

  service-policy Child_test_1

And priorize ping in child class :

policy-map Child_test_1

class ping

  priority percent 99

class class-default

  fair-queue

interface Virtual-Access3

mtu 1492

bandwidth 1677

ip vrf forwarding TEST

ip unnumbered Loopback0

no ip redirects

no ip proxy-arp

ip tcp adjust-mss 1400

load-interval 60

random-detect

service-policy output Parent_test_1

Interface Vi3 is a client connected via PPP/L2TP session.

When congestion occurs, packets are matching the queue :

        Class-map: ping (match-all)

          11029 packets, 3518323 bytes

          1 minute offered rate 0 bps, drop rate 0 bps

          Match: access-group 150

          Queueing

            Strict Priority

            Output Queue: Conversation 72

            Bandwidth 99 (%)

            Bandwidth 1493 (kbps) Burst 37325 (Bytes)

            (pkts matched/bytes matched) 366/83117

            (total drops/bytes drops) 0/0

But these matched packets are never received by the client.

Packets in the queue are lost and i don't understand where...

IOS version is 12.4.25d

1 Reply 1

Dr.X
Level 2
Level 2

hi ,

have you solved your issue ?

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