Technical data

Brocade 6910 Ethernet Access Switch Diagnostic Guide 37
53-1002348-02
Chapter
5ACL and QoS Diagnostics
This chapter provides diagnostic information for Access Control List (ACL) and Quality of Service
(QoS) environments, including traffic management.
ACLs
Access Control List (ACL) show commands help users to diagnose and determine the cause of
faults for ACL-related features. For details on Layer 2 ACLs, refer to the Layer 2 ACL chapter in the
Brocade BR6910 Configuration Guide.
ACL show commands
show access-list
Syntax: show ip {standard | extended} access-list [acl-name]
show ipv6 {standard | extended} access-list [acl-name]
show mac ace ss-list [acl-name]
This command displays the ACLs configured on a Brocade device.
Enter the ACL name for the acl-name parameter to display a specific ACL, enter this command
without a name to display all configured ACLs for the specified ACL type, or enter the command
without specifying the ACL type or name to display all configured ACLs.
For a specific ACL, enter a command similar to the following example.
Console# show ip standard access-list david
IP standard access-list david:
permit host 10.1.1.21
permit 168.92.0.0 255.255.15.0
Common diagnostic scenarios
• When an ACL was removed from a port with port mapping (ACL-based rate-limiting) configured,
the Brocade 6910 stopped all traffic on this port.
If you make an ACL configuration change, you must reapply the ACLs to their interfaces for the
change to take effect. An ACL configuration change includes any of the following actions:
- Adding, changing, or removing an ACL or an entry in an ACL
- Changing ToS-based QoS mappings
To reapply an ACL following an ACL configuration change, enter the ip access-group command
at the interface configuration level of the CLI as shown in the following example.
Console(config)# interface ethernet 1/2
Console(config-if)# ip access-group david in