Table 107: Summary Of Key Cos Forwarding Class Output Fields - Juniper EX Series User Manual

Table 107: Summary of Key CoS Forwarding Class Output Fields

Field
Forwarding Class
Queue
Fabric Priority
Copyright © 2017, Juniper Networks, Inc.
Values
Names of forwarding classes assigned to queue numbers. The following are the default
forwarding classes:
best-effort —Provides no special CoS handling of packets. Loss priority is typically not
carried in a CoS value.
expedited-forwarding —Provides low loss, low delay, low jitter, assured bandwidth, and
end-to-end service.
assured-forwarding —Provides high assurance for packets within the specified service
profile. Excess packets are dropped.
network-control —Packets can be delayed but not dropped.
EX8200 switches have the following additional default forwarding classes:
mcast-be —Provides no special CoS handling of packets.
—Provides low loss, low delay, low jitter, assured bandwidth, and end-to-end
mcast-ef
service.
—Provides high assurance for packets within the specified service profile. Excess
mcast-af
packets are dropped.
EX4300 switches supports all the forwarding classes mentioned above and the one
mentioned in this section:
mcast-nc —Provides multicast network-control traffic.
Queue number corresponding to the forwarding class name. The default forwarding classes
are assigned as follows:
—0
best-effort
—5
expedited-forwarding
assured-forwarding —1
—7
network-control
—2
mcast-be
—4
mcast-ef
—6
mcast-af
EX4300 switches have the following queue numbers for the forwarding classes:
—0
best-effort
expedited-forwarding —1
assured-forwarding —2
—3
network-control
—8
mcast-be
—9
mcast-ef
mcast-af —10
mcast-nc —11
(EX8200 switches only) Fabric priority for the forwarding class, either
priority determines the priority of packets entering the switch fabric.
Chapter 16: Monitoring Tasks
or . The fabric
high low
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