QoS Commands
page 38-22 OmniSwitch CLI Reference Guide November 2009
qos user-port
Configures the option to filter packets or administratively disable a port when the specified type of traffic
is received on a port that is a member of the pre-defined UserPorts group.
qos user-port {filter | shutdown} {spoof | bpdu | rip | dhcp-server | dns-reply}
qos no user-port {filter | shutdown}
Syntax Definitions
filter Filters the specified type of traffic when it is received on UserPort ports.
shutdown Administratively disables UserPort ports that receive the specified type
of traffic.
spoof Detects IP spoofing. The source IP address of a packet ingressing on a
user port is compared to the subnet of the VLAN for the user port; the
packet is dropped if these two items do not match. Also applies to ARP
packets.
bpdu Filters conventional Spanning Tree BPDU (destination MAC address
0x0180c2:000000) packets and GVRP (destination MAC address
0x0180c2:000021) packets.
rip Filters RIP protocol packets.
dhcp-server Filters response packets originating from a DHCP or BOOTP server that
is configured on the known UDP port 67.
dns-reply Filters all packets (both TCP and UDP) that originate from the known
DNS port 53.
Defaults
Platforms Supported
OmniSwitch 6250
Usage Guidelines
• Use the no form of this command to disable the filter or shutdown function. This form of the command
effects the overall operation of the feature.
• To specify more than one traffic type in the same command line, enter each type separated by a space
(e.g., spoof bpdu rip).
• Note that existing traffic types to filter or shutdown are removed each time the filter or shutdown
option is configured. Specify all desired traffic types each time the qos user-port command is
performed to retain previously configured traffic types.
parameter default
filter spoof
shutdown none
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