Nortel Networks 42C4911 Switch User Manual


 
Alteon OS Application Guide
126
Chapter 7: Quality of Service 42C4911, January 2007
Using ACL Filters
Access Control Lists are filters that allow you to classify and segment traffic, so you can pro-
vide different levels of service to different traffic types. Each filter defines the conditions that
must match for inclusion in the filter, and also the actions that are performed when a match is
made.
Summary of packet classifiers
The GbESM allows you to classify packets based on various parameters, such as:
Ethernet
Source MAC address
Destination MAC address
VLAN number/mask
Ethernet type
Ethernet Priority, which is the IEEE 802.1p Priority
IPv4
Source IP address/mask
Destination address/mask
Type of Service value
IP protocol number protocol number or name as shown in Table 7-1:.
TCP/UDP
TCP/UDP application source port as shown in Table 7-2 on page 127
TCP/UDP application destination port as shown in Table 7-2 on page 127
TCP/UDP flag value as shown in Table 7-3 on page 127
Table 7-1 Well-Known Protocol Types
Number Protocol Name
1
2
6
17
89
112
icmp
igmp
tcp
udp
ospf
vrrp