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service-acl input
Use the service-acl input command in Interface Configuration mode to block
Link Local Protocol Filtering (LLPF) protocol(s) on a given port. Use the no
form of this command to unblock link-local protocol(s) on a given port.
Syntax
service-acl input {blockcdp | blockvtp | blockdtp | blockudld | blockpagp |
blocksstp | blockall}
no service-acl input [blockcdp | blockvtp | blockdtp | blockudld |
blockpagp | blocksstp | blockall]
•
—
blockcdp
To block CDP PDU's from being forwarded.
•
—
blockvtp
To block VTP PDU's from being forwarded.
•
—
blockdtp
To block DTP PDU's from being forwarded.
•
—
blockudld
•
—
blockpagp
•
—
blocksstp
To block SSTP PDU's from being forwarded.
•
—
blockall
To block all the PDU's with MAC of 01:00:00:0c:cc:cx (x-don't care)
from being forwarded.
Default Configuration
The default is that none of the listed protocol PDUs are blocked.
Command Mode
Interface Configuration (Ethernet, Port-channel)
User Guidelines
To specify multiple protocols, enter the protocol parameters together on the
command line, separated by spaces. This command may be entered multiple
times and will block all protocols identified in the arguments.
Example
console(config-if-Te1/0/1)#service-acl input blockall
To block UDLD PDU's from being forwarded.
To block PAgP PDU's from being forwarded.
Layer 2 Switching Commands
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