Traffic Management - CCIE Routing and Switching Exam Certification Guide - page 519

Example 11-4 Traffic-Shaping Configuration
access-list 100 permit tcp any any eq ftp
access-list 100 permit tcp any any eq ftp-data
!
interface Ethernet0
traffic-shape group 100 2000000 250000 250000
!
interface Ethernet1
traffic-shape rate 7000000 875000 755000
Verify the traffic-shaping configuration with the show traffic-shape command, as shown in
Example 11-5.
Example 11-5 Router Output for show traffic-shape Command
R4#show traffic-shape
Interface Et0
Access Target Byte Sustain Excess Interval Increment Adapt
VC List Rate Limit bits/int bits/int (ms) (bytes) Active
- 100 2000000 62500 250000 250000 125 31250 -
Interface Et1
Access Target Byte Sustain Excess Interval Increment Adapt
VC List Rate Limit bits/int bits/int (ms) (bytes) Active
- 7000000 218750 875000 775000 125 109375 -
FRTS
FRTS allows for the management of traffic congestion in Frame Relay networks. FRTS-enabled
routers use received Backward Explicit Congestion Notification (BECN) information as input
to manage the outbound traffic. If the number of BECN notifications increases, FRTS scales
back the amount of outbound traffic. FRTS is enabled on the major interface, and traffic classes
are defined in the global configuration. A traffic class is configured on each subinterface for the
specified speeds.
FRTS can be configured in several ways; one method is shown in Example 11-6. The FRTS
class named 128kb is configured for an average rate of 128 kbps (equal to the committed
information rate (CIR)) and a peak rate of 256 kbps. The FRTS class named 512kb is configured
with an average rate of 512 kbps (equal to the CIR) and a peak rate of 1024 kbps.