Juniper Networks J-Series - Manual (Page 150)

Table 61: Summary of Key CoS Forwarding Class Output Fields
Additional Information Values Field
Names of forwarding classes assigned to
queue numbers. By default, the following
forwarding classes are assigned to queues
0 through 3:
■ best-effort —Provides no special CoS
handling of packets. Loss priority is
typically not carried in a CoS value, and
RED drop profiles are more aggressive.
■ expedited-forwarding —Provides low loss,
low delay, low jitter, assured
bandwidth, and end-to-end service.
■ assured-forwarding —Provides high
assurance for packets within specified
service profile. Excess packets are
dropped.
■ network-control —Packets can be
delayed but not dropped.
Forwarding Class
By default, four queues, 0 through 3, are
assigned to forwarding classes. Queue number corresponding to the
forwarding class name. Queue
Monitoring CoS Rewrite Rules
To display information about CoS value rewrite rules, which are based on the
forwarding class and loss priority, select Monitor>Class of Service>Rewrite Rules
in the J-Web interface, or enter the following CLI command:
show class-of-service rewrite-rules
Table 62 on page 128 summarizes key output fields for CoS rewrite rules.
Table 62: Summary of Key CoS Rewrite Rules Output Fields
Additional Information Values Field
Names of rewrite rules. Rewrite Rule Name
To display forwarding classes, loss priorities,
and rewritten CoS values, click the plus sign
(+). Rewrite rule type:
■ dscp —For IPv4 DiffServ traffic.
■ dscp-ipv6 —For IPv6 DiffServ traffic.
■ exp —For MPLS traffic.
■ ieee-802.1 —For Layer 2 traffic.
■ inet-precedence —For IPv4 traffic.
CoS Value Type
Internal index for this particular rewrite rule. Index
128 ■ Using the Monitoring Tools
J-series™ Services Router Administration Guide