Qos Options For Ip Acls - Dell PowerConnect B-RX Configuration Manual

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QoS options for IP ACLs

When the first Syslog entry for a packet denied by an ACL is generated, the software starts an ACL
timer. After this, the software sends Syslog messages every 1 to 10 minutes, depending on the
value of the timer interval. If an ACL entry does not permit or deny any packets during the timer
interval, the software does not generate a Syslog entry for that ACL entry.
NOTE
For an ACL entry to be eligible to generate a Syslog entry for denied packets, logging must be
enabled for the entry. The Syslog contains entries only for the ACL entries that deny packets and
have logging enabled.
To display Syslog entries, use one of the following methods.
Enter the following command from any CLI prompt.
BigIron RX(config)# show logging
Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns)
Static Log Buffer:
Oct 13 16:24:29:N:Switch Fabric 5 temperature 59.875 C degrees is normal
Dynamic Log Buffer (50 lines):Oct 13 17:19:36:I:running-config was changed from
telnet client 192.168.9.181
Oct 13 17:06:18:I:running-config was changed from telnet client 192.168.9.181
Oct 13 16:57:44:I:ACL: entry modified from telnet session
Oct 13 16:57:40:I:ACL: entry modified from telnet session
Oct 13 16:57:32:I:ACL: entry added from telnet session
Oct 13 16:53:04:I:ACL: 10 modified from telnet session
.
.
.
QoS options for IP ACLs
QoS options enable you to perform QoS for packets that match the ACLs. Using an ACL to perform
QoS is an alternative to the following methods.
•
•
For a list of supported QoS ACL options refer to
page 537
564
Buffer logging: level ACDMEINW, 38 messages logged
level code: A=alert C=critical D=debugging M=emergency E=error
I=informational N=notification W=warning
Directly setting the internal forwarding priority based on incoming port, VLAN membership, and
so on. (This method is described in
Enabling the IP ToS-based QoS feature described in
NOTE
If you use an ACL on an interface, ToS-based QoS assumes that the ACL will perform QoS for all
packets except the packets that match the permit ip any any ACL.
"Assigning QoS priorities to traffic"
"Configuring ToS-based QoS"
"Using ACL QoS options to filter packets"
on page 466.)
on page 468.
on
BigIron RX Series Configuration Guide
53-1002253-01