Users Guide

Table Of Contents
Port-Based Traffic Control 921
Configuring LLPF
NOTE: LLPF is not supported on the N1500 Series switches.
Use the following commands to configure LLPF settings. Most of these
protocols (other than CDP and UDLD) are obsolete and may cause excessive
CPU usage.
Command Purpose
configure Enter global configuration mode.
interface interface Enter interface configuration mode for the specified
interface. The interface variable includes the interface type
and number, for example tengigabitethernet 1/0/3.
A range of interfaces can be specified using the interface
range command. For example, interface range
tengigabitethernet 1/0/8-12 configures interfaces 8, 9, 10,
11, and 12.
service-acl input
{blockcdp | blockvtp |
blockdtp | blockudld |
blockpagp | blocksstp |
blockall}
Use the appropriate keyword, or combination of keywords
to block any (or all) of the following PDUs on the
interface:
CDP — Cisco Discovery Protocol
VTP — VLAN Trunking Protocol
DTP — Dynamic Trunking Protocol
UDLD — Unidirectional Link Detection
PAgP — Port Aggregation Protocol
SSTP — Secure Socket Tunneling Protocol
All
CTRL + Z Exit to Privileged Exec mode.
show service-acl
interface {interface |
all}
View information about the blocked PDUs on the
specified interface or all interfaces.