08-06-2007 12:52 PM - edited 03-03-2019 06:12 PM
Can someone help me interpret the "txload" and "rxload" values for sub-interfaces in the "show interface x/y.z CLI output?
In this example below we have a main interface frame circuit with 256K of bandwidth and then a sub-interface with a 16K PVC. I'm pretty sure that I need to look at the "txload" and "rxload" from the sub-interface output and correlate that to the main interface, not the sub-interface? As I recall, the sub-iface output can deceive the unwary.
Thanks.
Router#show int Serial3/3.131
Serial3/3.131 is up, line protocol is up
Hardware is M8T-V.35
Description:
Internet address is x.x.x.x/30
MTU 1500 bytes, BW 16 Kbit, DLY 20000 usec,
reliability 255/255, txload 8/255, rxload 6/255
Encapsulation FRAME-RELAY IETF
Router#
Router#show int s3/3
Serial3/3 is up, line protocol is up
Hardware is M8T-V.35
Description: 256K Circuit
MTU 1500 bytes, BW 256 Kbit, DLY 20000 usec,
reliability 255/255, txload 8/255, rxload 6/255
Encapsulation FRAME-RELAY IETF, crc 16, loopback not set
Keepalive set (10 sec)
Restart-Delay is 0 secs
LMI enq sent 512784, LMI stat recvd 512782, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 0 LMI type is ANSI Annex D frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 1364392/0, interface broadcasts 1108253
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 8w3d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 104
Queueing strategy: weighted fair
Output queue: 0/1000/64/91 (size/max total/threshold/drops)
Conversations 0/254/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 192 kilobits/sec
5 minute input rate 7000 bits/sec, 10 packets/sec
5 minute output rate 9000 bits/sec, 10 packets/sec
32559938 packets input, 3385652823 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
1495 input errors, 1476 CRC, 0 frame, 11 overrun, 0 ignored, 8 abort
33710499 packets output, 1912238829 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
74 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up
Router#
08-06-2007 04:56 PM
The txload and rxload under the subinterface simply copies the information from the main interface. There isn't any real straightforward way to calculate these values relevant to only the subinterface.
These aren't exactly the numbers you want to look at to figure out how loaded your FR interface is. If you want to look at rates, you can do a 'show frame-relay pvc
By default, the txload and rxload aren't used for anything. They are calculated and put in the 'show interface' output in the event you choose to use them in your EIGRP calculations by changing the defaults for your K values.
08-06-2007 07:48 PM
Hi
In addition to William's comments the bandwidth parameter under the interface in general is being used by OSPF to calculate its metric or cost.
regds
08-07-2007 04:50 AM
Well that's disappointing as I'd have to believe that there is a way to get a snapshot of PVC utiliz at the CLI. From my output I get a byte count but not any rate information.
show frame-relay pvc 131
PVC Statistics for interface Serial3/3 (Frame Relay DTE)
DLCI = 131, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial3/3.131
input pkts 78504 output pkts 117458 in bytes 6594630
out bytes 52920843 dropped pkts 0 in pkts dropped 0
out pkts dropped 0 out bytes dropped 0
in FECN pkts 0 in BECN pkts 0 out FECN pkts 0
out BECN pkts 0 in DE pkts 112 out DE pkts 0
out bcast pkts 0 out bcast bytes 0
pvc create time 20w5d, last time pvc status changed 12w5d
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: