Cisco Cisco ASR 5700
APN Configuration Mode Commands
ppp ▀
Command Line Interface Reference, StarOS Release 17 ▄
1425
keepalive
seconds
Specifies the frequency of sending the Link Control Protocol (LCP) keep alive messages.
seconds
must be
either 0 or an integer from 5 through 14400. The special value 0 disables the keep alive messages entirely.
Default: 30
Default: 30
min-compression-size
min_octets
Specifies the smallest packet to which compression may be applied as an integer from 0 through 2000.
Default: 128
Default: 128
mtu
max_octets
Specifies the maximum transmission unit (MTU) for packets accessing the APN as an integer from 100
through 2000. Default: 1500
through 2000. Default: 1500
Important:
The MTU refers to the PPP payload which excludes the two PPP octets. Therefore, an MTU of 1500
corresponds to the 3GPP standard MTU of 1502 for GTP packets with PPP payloads.
Usage
Adjust packet sizes and compression to improve bandwidth utilization. Each network may have unique
characteristics such that determining the best packet size and compression options may require system
monitoring over an extended period of time.
characteristics such that determining the best packet size and compression options may require system
monitoring over an extended period of time.
Example
The following command configures the ppp data-compression mode for the APN to be
stateless
:
ppp data-compression mode stateless
The following command configures an MTU of
500
for the APN:
ppp mtu 500