Yes, we have several dedicated queues for different types of control traffic. Inbound packets that are destined for an internal application are treated separately from forwarded packets. An example of an internal application would be the routing stack, which would handle BGP packets.
Outbound BGP packets are also assigned the highest priority but they may contend with other high priority forwarding traffic when traffic engineering is enabled. When traffic engineering is disabled, all packets egressing the device will be treated the same.
For local BGP (non SVR) the session type is not used and the packets are sent and received at highest priority. BGP over SVR packets use a generated service and the BGP session type which is defaulted to the highest priority.
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Anna Yungelson
Technical Lead Datapath Engineer
MA
(781) 203-8373
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Original Message:
Sent: 04-15-2019 20:48
From: Daisuke Sato
Subject: Dedicated queue for control packet
Hello,
Do we have a dedicated high priority queue for control packet which is separated from user traffic? If so, which packets are assigned to the queue?(BGP, OSPF etc.) Since I found the BGP in session type as default configuration I think it may be assigned to the queue same as forwarding packet.
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Daisuke Sato
Senior Systems Engineer
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