02-15-2007 01:42 AM - edited 03-14-2019 08:02 PM
I have a remote site configured to use SRST in the even of a WAN failover, this all works great in this instance.
The problem I am experiencing is that the SP occasionally has problems that degrade the performance of our WAN link.
Apart from lowering the keepalives is there any way I can protect my site from this. I experience problems with SRST failover and fallback when the line performance is degraded.
Any ideas?
Thanks
02-16-2007 04:30 AM
Performance degraded means? when the link flaps for sometime and the phones try to register to SRST? or what please explain in detail what is ur issue.
And send me SRST configs as well.
Regards,
Daljeet Singh
02-16-2007 07:31 AM
Hi Daljeet,
Below is the config, the link is a 2Mb cct running through an MPLS core,this is backed up by the SP with a 2Mb microwave cct.
The SP has recently been experiencing poor performance on the cct with losses of 20%+
If the link fails over to the microwave the router does not always failover into SRST mode. If it does it some times has trouble failing back, we recently had an event on the circuit when it failed and were unable to make outbound calls for 20min but could receive calls the router did not failover into SRST.
The keepalives are set 15 seconds is it possible that the mgcp failed and it took this long to reregister the endpoints?
Thanks
Stafford
System image file is "flash:c2800nm-spservicesk9-mz.124-6.T2.bin"
isdn switch-type basic-net3
!
voice-card 0
dspfarm
!
application
global
service alternate DEFAULT
!
interface BRI0/1/0
no ip address
isdn switch-type basic-net3
isdn point-to-point-setup
isdn incoming-voice voice
isdn bind-l3 ccm-manager service mgcp
isdn static-tei 0
!
interface BRI0/1/1
no ip address
isdn switch-type basic-net3
isdn point-to-point-setup
isdn incoming-voice voice
isdn bind-l3 ccm-manager service mgcp
isdn static-tei 0!
!
control-plane
!
!
voice-port 0/1/0
compand-type a-law
cptone GB
!
voice-port 0/1/1
compand-type a-law
cptone GB
!
!
ccm-manager fallback-mgcp
ccm-manager redundant-host 10.xxx.xxx.202 10.xxx.xxx.200
ccm-manager mgcp
no ccm-manager fax protocol cisco
ccm-manager music-on-hold
ccm-manager config server 10.xxx.xxx.201
ccm-manager config
!
mgcp
mgcp call-agent 10.xxx.xxx.201 2427 service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp ip qos dscp cs3 signaling
mgcp package-capability rtp-package
no mgcp package-capability res-package
mgcp package-capability sst-package
no mgcp package-capability fxr-package
mgcp package-capability pre-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
mgcp rtp payload-type g726r16 static
mgcp bind control source-interface FastEthernet0/0
mgcp bind media source-interface FastEthernet0/0
!
mgcp profile default
!
!
dial-peer voice 3 pots
service mgcpapp
destination-pattern 9T
incoming called-number .
direct-inward-dial
port 0/1/0
!
dial-peer voice 4 pots
service mgcpapp
destination-pattern 9T
incoming called-number .
direct-inward-dial
port 0/1/1
!
dial-peer voice 999000 pots
service mgcpapp
port 0/0/0
!
!
!
call-manager-fallback
secondary-dialtone 9
max-conferences 8 gain -6
transfer-system local-consult
timeouts interdigit 5
ip source-address 10.xxx.xxx.xxx port 2000
max-ephones 30
max-dn 60 dual-line
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