Examples
The following is sample output from the showframe-relayiprtpheader-compressioncommand:
Router# show frame-relay ip rtp header-compression
DLCI 21 Link/Destination info: ip 10.1.4.1
Interface Serial3/0 DLCI 21 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
DLCI 20 Link/Destination info: ip 10.1.1.1
Interface Serial3/1 DLCI 20 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
DLCI 21 Link/Destination info: ip 10.1.2.1
Interface Serial3/1 DLCI 21 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
DLCI 22 Link/Destination info: ip 10.1.3.1
Interface Serial3/1 DLCI 22 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
The following is sample output from the showframe-relayiprtpheader-compressioncommand when ECRTP is enabled:
Router# show frame-relay ip rtp header-compression
DLCI 16 Link/Destination info: ip 10.0.0.1
Interface Serial4/1 DLCI 16 (compression on, IETF, ECRTP)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 16 rx slots, 16 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 16 free contexts
In the following example, the showframe-relayiprtpheader-compression command displays information about DLCI 21:
Router# show frame-relay ip rtp header-compression 21
DLCI 21 Link/Destination info: ip 10.1.4.1
Interface Serial3/0 DLCI 21 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
DLCI 21 Link/Destination info: ip 10.1.2.1
Interface Serial3/1 DLCI 21 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
In the following example, the showframe-relayiprtpheader-compression command displays information for all DLCIs on serial interface 3/1:
Router# show frame-relay ip rtp header-compression interface serial3/1
DLCI 20 Link/Destination info: ip 10.1.1.1
Interface Serial3/1 DLCI 20 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
DLCI 21 Link/Destination info: ip 10.1.2.1
Interface Serial3/1 DLCI 21 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
DLCI 22 Link/Destination info: ip 10.1.3.1
Interface Serial3/1 DLCI 22 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
In the following example, the showframe-relayiprtpheader-compression command displays information only for DLCI 21 on serial interface 3/1:
Router# show frame-relay ip rtp header-compression interface serial3/1 21
DLCI 21 Link/Destination info: ip 10.1.2.1
Interface Serial3/1 DLCI 21 (compression on, Cisco)
Rcvd: 0 total, 0 compressed, 0 errors, 0 status msgs
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 0 total, 0 compressed, 0 status msgs, 0 not predicted
0 bytes saved, 0 bytes sent
Connect: 256 rx slots, 256 tx slots,
0 misses, 0 collisions, 0 negative cache hits, 256 free contexts
The following sample output from the showframe-relayiprtpheader-compression command shows statistics for a PVC bundle called MP-3-static:
Router# show frame-relay ip rtp header-compression interface Serial1/4
vc-bundle MP-3-static Link/Destination info:ip 10.1.1.1
Interface Serial1/4:
Rcvd: 14 total, 13 compressed, 0 errors
0 dropped, 0 buffer copies, 0 buffer failures
Sent: 15 total, 14 compressed,
474 bytes saved, 119 bytes sent
4.98 efficiency improvement factor
Connect:256 rx slots, 256 tx slots,
1 long searches, 1 misses 0 collisions, 0 negative cache hits
93% hit ratio, five minute miss rate 0 misses/sec, 0 max
The table below describes the significant fields shown in the displays.
Table 16 |
show frame-relay ip rtp header-compression Field Descriptions |
Field |
Description |
Interface |
Type and number of the interface and type of header compression. |
Rcvd: |
Table of details concerning received packets. |
total |
Number of packets received on the interface. |
compressed |
Number of packets with compressed headers. |
errors |
Number of errors. |
dropped |
Number of dropped packets. |
buffer copies |
Number of buffers that were copied. |
buffer failures |
Number of failures in allocating buffers. |
Sent: |
Table of details concerning sent packets. |
total |
Total number of packets sent. |
compressed |
Number of packets sent with compressed headers. |
bytes saved |
Total savings in bytes because of compression. |
bytes sent |
Total bytes sent after compression. |
efficiency improvement factor |
Compression efficiency. |
Connect: |
Table of details about the connections. |
rx slots |
Total number of receive slots. |
tx slots |
Total number of transmit slots. |
long searches |
Searches that needed more than one lookup. |
misses |
Number of new states that were created. |
hit ratio |
Number of times that existing states were revised. |
five minute miss rate |
Average miss rate. |
max |
Maximum miss rate. |