Cisco 7609 - Page 407

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
78-14064-04
Chapter 32 Configuring PFC QoS
Understanding How PFC QoS Works
Figure 32-5 Marking with PFC2 and Multilayer Switch Feature Card 2
Figure 32-6 Marking with PFC1 and Multilayer Switch Feature Card 1 or 2
55845
To egress
port
IP traffic
from PFC2?
Write ToS
byte into
packet
No
Ye s
Multilayer Switch Feature Card 2 (MSFC2) marking
From PFC2
Route
traffic
CoS =
IP precedence for
all traffic
(not configurable)
27107
To egress
port
IP traffic
from PFC?
Write ToS
byte into
packet
No
Ye s
Multilayer Switch Feature Card (MSFC) marking
From PFC
Route
traffic
CoS = 0 for all traffic
(not configurable)