10-09-2013 02:25 AM - edited 03-04-2019 09:15 PM
Hello,
I have a 7606-SIP400 as BRAS and Border together (2-in-1). When I set the ASR1001 as a separate Border, then PPPoE clients are beginning to complain about the hung TCP-sessions.
The investigation showed that when I install ASR, BRAS forms wrong value PPPoE Payload size for TCP ACK packets without TCP Payload. It indicates 2 bytes more, then actulal size is.
I also see that the ASR change the first 2 bytes of Ethernet PAD from "00-00" to "aa-aa".
Whether it's IOS software bug? How can I fix the problem?
Cisco IOS Software, c7600rsp72043_rp Software (c7600rsp72043_rp-ADVIPSERVICESK9-M), Version 12.2(33)SRE1, RELEASE SOFTWARE (fc2)
NAME: "CISCO7606", DESCR: "Cisco Systems Cisco 7600 6-slot Chassis System"
PID: CISCO7606 , VID: , SN: FOX1245HDMB
NAME: "module 1", DESCR: "Cisco 7600 Series SPA Interface Processor-400 Rev. 2.6"
PID: 7600-SIP-400 , VID: V07, SN: JAE12471874
NAME: "module 2", DESCR: "7600-ES20-GE3C ESM20G Rev. 1.2"
PID: 7600-ES20-GE3C , VID: V03, SN: JAE1249238X
NAME: "module 3", DESCR: "WS-X6148A-GE-TX 48-port 10/100/1000 RJ45 EtherModule Rev. 1.7"
PID: WS-X6148A-GE-TX , VID: V04, SN: SAL1252DY2N
NAME: "module 5", DESCR: "RSP720-3C-GE 2 ports Route Switch Processor 720 Rev. 5.7"
PID: RSP720-3C-GE , VID: V05, SN: JAE124603EF
NAME: "module 6", DESCR: "RSP720-3C-GE 2 ports Route Switch Processor 720 Rev. 5.7"
PID: RSP720-3C-GE , VID: V05, SN: JAE12481FYF
Cisco IOS Software, IOS-XE Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 15.1(3)S5, RELEASE SOFTWARE (fc1)
NAME: "Chassis", DESCR: "Cisco ASR1001 Chassis w/o IDC"
PID: ASR1001 , VID: V02, SN: SSI16430D6K
08-30-2018 02:20 AM
Hello,
i have the same idendical problem that lead to many issues. Anyone have a solution/workaround for this?
Thank you in advance
08-30-2018 03:16 AM
For what is worth, if I enable the tcp header-compression over the PPP link, the issue goes away but the packets are punkt to CPU and the performances are gone.
It's seems that it is a bug of the encapsulation process inside the SIP-400. If someone have a solution for this will become my hero.
Thank you for any help that anyone can provide.
03-13-2023 07:22 AM
Its fixed on ASR9900 through CSCwd70826.
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