Reference Guide

246 | Debugging and Diagnostics
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Flooded packets on all VLANs are received on a server
Symptom: All packets flooded on all VLANs on an Aggregator are received on a server, even if the
server is configured as a member of only a subset of VLANs. This behavior happens because all
Aggregator ports are, by default, members of all (4094) VLANs.
Resolution: Configure a port that is connected to the server with restricted VLAN membership.
Steps to Take:
1. Display the current port mode for Aggregator L2 interfaces (
show interfaces switchport interface
command).
2. Assign the port to a specified group of VLANs (
vlan tagged command) and re-display the port mode
status.
FTOS#show interfaces switchport tengigabitethernet 0/1
Codes: U - Untagged, T - Tagged
x - Dot1x untagged, X - Dot1x tagged
G - GVRP tagged, M - Trunk, H - VSN tagged
i - Internal untagged, I - Internal tagged, v - VLT untagged, V - VLT tagged
Name: TenGigabitEthernet 0/1
802.1QTagged: Hybrid
SMUX port mode: Auto VLANs enabled
Vlan membership:
Q Vlans
U 1
T 2-4094
Native VlanId: 1
FTOS(conf)#interface tengigabitethernet 0/1
FTOS(conf-if-te-0/1)#vlan tagged 2-5,100,4010
FTOS(conf-if-te-0/1)#
FTOS#show interfaces switchport tengigabitethernet 0/1
Codes: U - Untagged, T - Tagged
x - Dot1x untagged, X - Dot1x tagged
G - GVRP tagged, M - Trunk, H - VSN tagged
i - Internal untagged, I - Internal tagged, v - VLT untagged, V - VLT tagged
Name: TenGigabitEthernet 0/1
802.1QTagged: Hybrid
SMUX port mode: Admin VLANs enabled
Vlan membership:
Q Vlans
U 1
T 2-5,100,4010
Native VlanId: 1