Enterasys SecureStack C2, Configuration Manual

Page: 288 / 607

show port discard
8-10 802.1Q VLAN Configuration
Parameters
Defaults
None.
Mode
Switch command, read ‐ write.
Usage
When ingress filtering is enabled on a port, the VLAN IDs of incoming frames are compared to the
port’s egress list. If the received VLAN ID does not match a VLAN ID on the port’s egress list,
then the frame is dropped.
Ingress filtering is implemented according to the IEEE 802.1Q standard.
Example
This example shows how to enable port ingress filtering on
ge
.1.3:
C2(su)->set port ingress-filter ge.1.3 enable
show port discard
Use this command to display the frame discard mode for one or more ports. Ports can be set to
discard frames based on whether or not the frame contains a VLAN tag. They can also be set to
discard both tagged and untagged frames, or neither.
Syntax
show port discard [ port-string ]
Parameters
Defaults
If port-string is not specified, frame discard mode will be displayed for all
ports.
Mode
Switch command, read ‐ only.
port ‐ string Specifies the port(s) on which to enable of disable ingress filtering. For a
detailed description of possible port ‐ string values, refer to “ Port String
Syntax Used in the CLI ” on page 5 ‐ 2.
disable | enable Disables or enables ingress filtering.
port ‐ string (Optional) Displays the frame discard mode for specific port(s). For a
detailed description of possible port ‐ string values, refer to “ Port String
Syntax Used in the CLI ” on page 5 ‐ 2.