Quick Reference Guide

378 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Configuring extended named ACLs
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• priority or 1 – The ACL matches packets that have the priority precedence. If you specify the
option number instead of the name, specify number 1.
• routine or 0 – The ACL matches packets that have the routine precedence. If you specify the
option number instead of the name, specify number 0.
The tos <name> | <num> parameter of the ip access-list command specifies the IP ToS. You can
specify one of the following:
• max-reliability or 2 – The ACL matches packets that have the maximum reliability ToS. The
decimal value for this option is 2.
• max-throughput or 4 – The ACL matches packets that have the maximum throughput ToS. The
decimal value for this option is 4.
• min-delay or 8 – The ACL matches packets that have the minimum delay ToS. The decimal
value for this option is 8.
• min-monetary-cost or 1 – The ACL matches packets that have the minimum monetary cost
ToS. The decimal value for this option is 1.
NOTE
This value is not supported on 10 Gigabit Ethernet modules.
• normal or 0 – The ACL matches packets that have the normal ToS. The decimal value for
this option is 0.
• <num> – A number from 0 – 15 that is the sum of the numeric values of the options you want.
The ToS field is a four-bit field following the Precedence field in the IP header. You can specify
one or more of the following. To select more than one option, enter the decimal value that is
equivalent to the sum of the numeric values of all the ToS options you want to select. For
example, to select the max-reliability and min-delay options, enter number 10. To select all
options, select 15.
• The dscp-cos-mapping option maps the DSCP value in incoming packets to a hardware table
that provides mapping of each of the 0 – 63 DSCP values, and distributes them among eight
traffic classes (internal priorities) and eight 802.1p priorities.
NOTE
The dscp-cos-mapping option overrides port-based priority settings.
The dscp-marking option enables you to configure an ACL that marks matching packets with a
specified DSCP value Enter a value from 0 – 63. Refer to “Using an IP ACL to mark DSCP values
(DSCP marking)” on page 387.
The dscp-matching option matches on the packet’s DSCP value. Enter a value from 0 – 63. This
option does not change the packet’s forwarding priority through the device or mark the packet.
Refer to “DSCP matching” on page 389.
The log parameter enables SNMP traps and Syslog messages for packets denied by the ACL:
• You can enable logging on ACLs and filters that support logging even when the ACLs and filters
are already in use. To do so, re-enter the ACL or filter command and add the log parameter to
the end of the ACL or filter. The software replaces the ACL or filter command with the new one.
The new ACL or filter, with logging enabled, takes effect immediately.
The traffic-policy option enables the device to rate limit inbound traffic and to count the packets
and bytes per packet to which ACL permit or deny clauses are applied. For configuration
procedures and examples, refer to the chapter “About traffic policies” on page 427.