Additional Features
LAN-X Traffic Control Features
5-14
SpectraComm IP T1 Router Card
076R200-000
Installation and Operation Manual
Issue 13
Expedited Traffic Queuing
In LAN-X applications, SCIP can provide priority queuing for IP traffic marked as Expedited
traffic. VoIP is typically marked for Expedited Forwarding by VoIP vendors. SCIP has three
transmit priority queues per interface:
•
Urgent Queue used only for Spanning Tree messages and LANX layer 2 Keep Alive
messages. (Holds up to 10 packets.)
•
Expedited Queue used only for IPv4 and IPv6 packets marked as EF.
(Holds up to 50 packets.)
•
Normal Queue used for all other traffic. (Holds up to 50 packets.)
For help in setting traffic parameters, type:
configure traffic ?
To show the status of traffic parameters, type:
show traffic
To show TX Expedited Queue Statistics by interface, type
show interfaces
[interface]
Figure 5-9
Help and Status Displays for Expedited Traffic
SCIP-T1% configure traffic ?
___________Help for "configure traffic "______________________
enable Enable priority queuing for expedited traffic
disable Disable priority queuing for expedited traffic
dscp Configure DSCP value for expedited traffic; requires 1 parameter(s)
rate Configure max rate for expedited traffic; requires 1 parameter(s)
trap-int Configure trap interval for violations; requires 1 parameter(s)
SCIP-T1% configure traffic dscp ?
___________Help for "configure traffic dscp "______________________
dscp Configure DSCP value for expedited traffic; requires 1 parameter(s)
DSCP value for expedited traffic(hexadecimal)
SCIP-T1% show interfaces e0
ethernet0 admin state is ON, line protocol is UP
Max Ethernet packet length is 1518 bytes
Spanning Tree Protocol not used on this interface
Internet address is 172.016.010.193/16
MAC address is 00-C0-64-02-00-6F
Last clearing of "show interface" counters: never
Statistics for ethernet0:
RX Packets: 284430 TX Packets: 2429
RX Bytes: 35793776 TX Bytes: 164215
RX Dropped: 0 TX Dropped: 0
RX Q Hi Water Mark: 47 TX Q Hi Water Mark: 1
RX Q Size 50 TX Q Size 50
RX Q Count 0 TX Q Count 0
RX Broadcast Discarded: 0
RX Busy: 0
RX 1 minute rate(bps): 13307 TX 1 minute rate(bps): 234
RX Total Errors: 0 TX Total Errors: 0
RX Errors Frame Length: 0 TX Errors Late Coll: 0
RX Errors Nonoctet: 0 TX Errors Retry Limit: 0
RX Errors Short: 0 TX Errors Under Run: 0
RX Errors CRC: 0 TX Errors Carrier Lost: 0
RX Errors Overrun: 0
RX Errors Truncated: 0
SCIP-T1% configure traffic rate ?
___________Help for "configure traffic rate "______________________
rate Configure max rate for expedited traffic; requires 1 parameter(s)
max rate bps for expedited traffic(use 0 for no limit)
SCIP-T1% show traffic
Expedited traffic admin state is ON
Expedited traffic configured DSCP value: 0xB8
Expedited traffic is limited to 500000 limit.
Expedited traffic trap interval for violations is 5 seconds
Содержание SpectraComm IP T1
Страница 119: ......
Страница 120: ...The Best Connections in the Business...