Overview
82 Quality of Service Guide
The configuration of self-generated QoS is supported in the base router, VPRN, and
management contexts.
The default values for self-generated traffic on network interfaces are:
• Routing protocols (OSPF, BGP, etc.)
→ Forwarding class: Network Control (NC)
→ DSCP value: NC1 (not applicable for ARP, IS-IS, and PPPoE)
→ 802.1p value: according to the egress QoS policy (7 by default)
• Management protocols (SSH, SNMP, etc.)
→ Forwarding class: Network Control (NC)
→ DSCP value: AF41
→ 802.1p value: according to the egress QoS policy (7 by default)
Table 18: Default QoS Values for Self-Generated Traffic
Protocol DSCP FC
ARP N/A NC
BFD NC1 NC
BGP NC1 NC
Cflowd NC1 NC
DHCP NC1 NC
Diameter AF41 NC
DNS AF41 NC
FTP AF41 NC
GTP NC2 NC
ICMP BE NC
IGMP NC1 NC
IS-IS N/A NC
L2TP NC1 NC
LDP NC1 NC
MLD NC1 NC
MSDP NC1 NC
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