Additional Features
LAN-X Traffic Control Features
076R200-000
SpectraComm IP T1 Router Card
5-13
Issue 13
Installation and Operation Manual
LAN-X Traffic Control Features
SCIP in LAN-X mode supports the following additional traffic control features:
•
Enable/disable Ethernet Jumbo Packets (default is Disabled)
•
Enable/Disable Ethernet Broadcast Limiting (default is Enabled)
•
Expedited Traffic Queuing (default is Disabled)
For help in setting LAN-X parameters, type:
configure lanx-router ?
To show the status of LAN-X parameters, type
show lanx-router
Figure 5-8
Help and Show Displays for LANX Traffic Functions
Ethernet Broadcast Limiting
SCIP in LAN-X mode supports ethernet broadcast limiting. Broadcast limiting prevents switched
ports on a LAN from being disrupted by a broadcast storm on one of the ports. A LAN broadcast
storm occurs when broadcast or multicast packets flood the LAN, creating excessive traffic and
degrading network performance.
Broadcast limiting is controlled by setting a percentage of total available bandwidth that can be used
by broadcast traffic. The default setting for Broadcast limiting is
Enabled
, with limiting set to
10%
of LAN-X bandwidth. A threshold value of 100 percent means that no limit is placed on
broadcast traffic.
Ethernet Jumbo (Extended) Packets
SCIP in LAN-X mode supports the sending and receiving of jumbo frame size packets which are
up to 6 times the size of standard Ethernet packets. Jumbo packets delivers up to 1536 byte packets
instead of a 1518 byte packet for standard Ethernet. The extended length is required for specific
applications such as VLAN tagging. The default setting for jumbo packets is off (
Disabled
).
SCIP-T1% configure lanx-router ?
___________Help for "configure lanx-router "______________________
jumbo Enable/Disable support Ethernet jumbo packets
lanx Enable LAN extension using serial0 or serial1; requires 1 parameter(s)
mgt Depreciated Command; No longer required
remote Configure remote unit's IP address or default route
router Enable routing for all interfaces
bcast Configure received broadcast limiting
SCIP-T1% show lanx-router
LAN Extension mode is enabled on serial0. Router mode is disabled.
Support for Ethernet jumbo packets is disabled.
Max Ethernet packet length is 1518 bytes
LANX broadcast limiting is enabled.
LANX bandwidth allowed for broadcast frames is 10 percent (153 Kbps).
LAN-X is DOWN
Содержание SpectraComm IP T1
Страница 119: ......
Страница 120: ...The Best Connections in the Business...