[asterisk-ss7] chan_ss7 - unstable link

[Low Yu Siang]

Hi all,

After running for days(~300 incoming calls), the link became unstable. Whenever a call is coming in, it throws the following error messages. This call is accepted properly but all other calls cant be accepted during this moment(since the signalling link is already down), until the link automatically comes up again.

[Aug  6 11:07:43] NOTICE[25980]: mtp.c:1800 mtp_thread_main: Empty Zaptel output buffer detected, outgoing packets may have been lost on link 'l1'.
[Aug  6 11:07:43] NOTICE[25980]: mtp.c:1748 mtp_thread_main: Full Zaptel input buffer detected, incoming packets may have been lost on link 'l1' (count=64.
[Aug  6 11:07:43] NOTICE[25980]: mtp.c:1015 mtp2_process_lssu: Got status indication 'OS' while INSERVICE on link 'l1'.
[Aug  6 11:07:43] WARNING[25980]: chan_ss7.c:622 process_event: MTP is now DOWN on link 'l1'.
[Aug  6 11:07:43] NOTICE[25980]: mtp.c:588 mtp_changeover: MTP changeover last_ack=3, last_sent=3, from schannel 16, no INSERVICE schannel found
[Aug  6 11:07:43] NOTICE[25980]: mtp.c:592 mtp_changeover: Failover not possible, no other signalling link and no other host available.
[Aug  6 11:07:43] WARNING[25980]: chan_ss7.c:622 process_event: MTP is now DOWN on link 'l1'.
[Aug  6 11:07:43] WARNING[25980]: mtp.c:1931 mtp_thread_main: No signalling links inservice and no cluster receivers alive, dropping packet!
[Aug  6 11:07:45] NOTICE[25980]: mtp.c:1138 mtp2_good_frame: Sending TRA to peer on link 'l1'....
[Aug  6 11:07:45] WARNING[25980]: chan_ss7.c:618 process_event: MTP is now UP on link 'l1'.

Any help/suggestion would be greatly appreciated.

Regards,
Low Yu Siang


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