Quality of Service Guide Network Queue QoS Policies
Edition: 01 3HE 11014 AAAC TQZZA 247
Parameters name — specifies the name for the slope policy
Values Valid names consist of any string up to 32 characters long
composed of printable, 7-bit ASCII characters. If the string contains
special characters (#, $, spaces, etc.), the entire string must be
enclosed within double quotes.
Default default
egress-rate
Syntax egress-rate sub-rate [include-fcs] [allow-eth-bn-rate-changes] [hold-time hold-time]
no egress-rate
Context config>port>ethernet
Description This command configures the rate of traffic leaving the network.
With the include-fcs option, the egress rate limit is applied to the traffic rate egressing the
port with the 4-byte Ethernet FCS field included. If this option is not configured, the egress
rate limit is applied to the traffic rate egressing the port without the 4-byte Ethernet FCS field
included, and the actual rate of packets leaving the port is slightly higher than the configured
egress rate value.
The include-fcs option is not supported on the 8-port Ethernet Adapter card (version 2),
7705 SAR-A Fast Ethernet ports (ports 9 to 12), or 4-port SAR-H Fast Ethernet module. On
the 6-port SAR-M Ethernet module, the include-fcs option is always on and cannot be
disabled to compensate for the 4-byte FCS.
The allow-eth-bn-rate-changes option enables the Y.1731 ETH-BN client MEP option on
the port. In applications such as a point-to-point microwave link, where degradation on the
line can result in reduced link bandwidth, the egress rate can be dynamically changed based
on the available bandwidth on the link as indicated by the ETH-BN server. When enabled, the
received rate overrides the configured sub-rate for the port. For information on ETH-BN,
including which Ethernet ports support this functionality, refer to the 7705 SAR OAM and
Diagnostics Guide, “ITU-T Y.1731 Ethernet Bandwidth Notification (ETH-BN)”.
The bandwidth indicated by the ETH-BN server includes the FCS; therefore, the include-fcs
option must be selected if the allow-eth-bn-rate-changes option is selected or the
dynamically changed bandwidth will not match the intended rate.
The hold-time is used to limit the number of bandwidth changes as requested by the ETH-BN
server. After a rate change occurs based on a Bandwidth Notification Message (BNM), any
BMN received before the hold timer expires will be ignored.
The no form of this command returns the value to the default.
Default no egress-rate
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