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12-17-2019
02:00 AM
Dear community, We are facing a strange behavior with two Cisco ASR 1002-X routers. The routers are running on IOS XE, one of them is running version Version 15.4(1)S while the other is running version Version 15.5(3)S1a. We use the routers to aggregate PPPoE sessions. Each router holds about 5 to 6 thousand PPPoE subscribers. What we have noticed is that during accounting interim updates for a few clients the routers are not sending the Calling Station ID attribute in the packet, I would like to point out that this happens only for a few pppoe session not all of them. From what we can see the issue happens only when sending interim updates, when Access Request packet is send the Calling station ID is there but when accounting stop and start messages are sent the Calling Station ID is attribute for the same user is not sent. Meanwhile for other users the same routers include the Calling station ID in the interim Update. Below is the configuration that we have performed on both routers regarding aaa and pppoe sessions: aaa authentication login console local aaa authentication ppp default group radius aaa authorization network default group radius aaa accounting delay-start aaa accounting update periodic 10 aaa accounting network default start-stop group radius aaa server radius dynamic-author server-key 7 x.x.x.x auth-type any ignore session-key aaa session-id common aaa policy interface-config allow-subinterface multilink bundle-name authenticated vpdn enable ! vpdn-group pppoe ! Default L2TP VPDN group ! Default PPTP VPDN group accept-dialin protocol any virtual-template 1 bba-group pppoe global virtual-template 1 sessions max limit 12000 sessions per-mac limit 22 sessions per-vlan limit 12000 sessions per-mac throttle 1 3 10 sessions auto cleanup radius server radius01 address ipv4 x.x.x.x auth-port 1812 acct-port 1813 key 7 x.x.x.x I am also attaching the packets that we have received from the ASR on the Radius server.
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Created by
digicom
in Network Management
in Network Management
10-02-2019
04:02 AM
10-02-2019
04:02 AM
Hi, Just wanted to update the case, I still have not been able to pinpoint the issue but I have reduced the routing table of the router from approximately 700K to 250K routes and the issue has not appeared anymore. Hopping not to face the issue again, and that this info might be helpful for others facing similar issue. Regards, Markel
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Created by
digicom
in Network Management
in Network Management
09-27-2019
02:58 AM
09-27-2019
02:58 AM
Hi Marce, First of all thanks for the response! I have already check physical connections and everything looks fine no errors or anything on the interfaces. Also as I have mentioned the issue happens with all peers that are connected to the router even though they are on different cards and different ports on the router. Any other suggestion would be deeply appreciated. Kind regards, Markel
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09-26-2019
12:55 PM
Dear Community, I have a Cisco 7606S with Sup 720 which is currently facing issues with layer three process. What I am noticing is that layer three processes such as OSPF, HSRP and BGP are dropping unexpectedly. During the time that the connections drop the router stops responding to icmp on the interfaces as well. All of my OSPF neighbourships go down all of a sudden and come back up on their own, when the OSPF sessions go down also HSRP sessions go down, it is worth to notice that the OSPF connections are setup on different interfaces and on different cards as well so I am thinking it might be a supervisor issue but not sure where to look for clues. Interfaces remain up during the time that my connections drop and also I have checked for error on the interface but there is none. I also changed one of the ports where one of my OSPF connections is established but still the issue occurs. The connections will stay stable for several hours and there all of a sudden all my OSPF and HSRP session drop and they came back up on their own, they stay like that for several hours and then the issue happens again, it should be noted that there isnt any change performed on the network during this time. I am posting below the logs from the last occurence: Sep 26 2019 21:38:07 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Standby -> Active Sep 26 2019 21:38:08 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Standby -> Active Sep 26 2019 21:38:21 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan777 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:38:21 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan777 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:38:22 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Active -> Speak Sep 26 2019 21:38:28 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan777 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:38:28 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan6 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:38:28 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan777 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:38:28 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan777 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:38:29 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Active -> Speak Sep 26 2019 21:38:39 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Speak -> Standby Sep 26 2019 21:38:44 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Standby -> Active Sep 26 2019 21:38:44 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Active -> Speak Sep 26 2019 21:38:47 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Speak -> Standby Sep 26 2019 21:38:47 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Standby -> Active Sep 26 2019 21:38:47 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Active -> Speak Sep 26 2019 21:39:01 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Speak -> Standby Sep 26 2019 21:39:02 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Speak -> Standby Sep 26 2019 21:39:15 EET1: %OSPF-5-ADJCHG: Process xxxx , Nbr xxxx on Vlan4 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:39:27 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Standby -> Active Sep 26 2019 21:39:28 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Active -> Speak Sep 26 2019 21:39:32 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Standby -> Active Sep 26 2019 21:39:32 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Active -> Speak Sep 26 2019 21:39:44 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Speak -> Standby Sep 26 2019 21:39:48 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Speak -> Standby Sep 26 2019 21:40:14 EET1: %OSPF-5-ADJCHG: Process xxxx , Nbr xxx on Vlan777 from LOADING to FULL, Loading Done Sep 26 2019 21:40:33 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Standby -> Active Sep 26 2019 21:40:36 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Standby -> Active Sep 26 2019 21:40:44 EET1: %BGP-3-NOTIFICATION: sent to neighbor xxxx 4/0 (hold time expired) 0 bytes Sep 26 2019 21:40:44 EET1: %BGP-5-NBR_RESET: Neighbor xxxx reset (BGP Notification sent) Sep 26 2019 21:40:54 EET1: %OSPF-5-ADJCHG: Process xxxx , Nbr xxxx on Vlan777 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:40:59 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxx on Vlan777 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:40:59 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan777 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:40:59 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxx on Vlan777 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:40:59 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxx on Vlan777 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:41:02 EET1: %OSPF-4-CONFLICTING_LSAID: Process xxxx area dummy area: LSA origination prevented by LSA with same LSID but a different mask Existing Type 5 LSA: LSID x.x.x.x/23 New Destination: x.x.x.x/23 Sep 26 2019 21:41:03 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Active -> Speak Sep 26 2019 21:41:03 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Active -> Speak Sep 26 2019 21:41:06 EET1: %OSPF-5-ADJCHG: Process xxx, Nbr xxx on Vlan4 from LOADING to FULL, Loading Done Sep 26 2019 21:41:08 EET1: %BGP-5-ADJCHANGE: neighbor xxxx Down BGP Notification sent Sep 26 2019 21:41:08 EET1: %BGP_SESSION-5-ADJCHANGE: neighbor xxxx IPv4 Unicast topology base removed from session BGP Notification sent Sep 26 2019 21:41:21 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Speak -> Standby Sep 26 2019 21:41:22 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Speak -> Standby Sep 26 2019 21:41:30 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Standby -> Active Sep 26 2019 21:41:30 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Active -> Speak Sep 26 2019 21:41:37 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Standby -> Active Sep 26 2019 21:41:37 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Active -> Speak Sep 26 2019 21:41:46 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Speak -> Standby Sep 26 2019 21:41:48 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Standby -> Active Sep 26 2019 21:41:48 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Active -> Speak Sep 26 2019 21:41:53 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Speak -> Standby Sep 26 2019 21:42:01 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan777 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:42:03 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxx on Vlan4 from FULL to DOWN, Neighbor Down: Dead timer expired Sep 26 2019 21:42:12 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Standby -> Active Sep 26 2019 21:42:12 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Active -> Speak Sep 26 2019 21:42:15 EET1: %OSPF-4-CONFLICTING_LSAID: Process xxxx area dummy area: LSA origination prevented by LSA with same LSID but a different mask Existing Type 5 LSA: LSID x.x.x.x/23 New Destination: x.x.x.x/24 Sep 26 2019 21:42:25 EET1: %OSPF-5-ADJCHG: Process 35444, Nbr xxxx on Vlan6 from LOADING to FULL, Loading Done Sep 26 2019 21:42:27 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Speak -> Standby Sep 26 2019 21:42:44 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Standby -> Active Sep 26 2019 21:42:47 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Standby -> Active Sep 26 2019 21:42:52 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Active -> Speak Sep 26 2019 21:42:59 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Active -> Speak Sep 26 2019 21:43:06 EET1: %BGP-5-ADJCHANGE: neighbor xxxx Up Sep 26 2019 21:43:10 EET1: %HSRP-5-STATECHANGE: Vlan122 Grp 122 state Speak -> Standby Sep 26 2019 21:43:15 EET1: %HSRP-5-STATECHANGE: Vlan120 Grp 120 state Speak -> Standby Sep 26 2019 21:43:21 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr yyyy on Vlan777 from LOADING to FULL, Loading Done Sep 26 2019 21:43:21 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr yyyy on Vlan777 from LOADING to FULL, Loading Done Sep 26 2019 21:43:22 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr yxz on Vlan777 from LOADING to FULL, Loading Done Sep 26 2019 21:43:23 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxz on Vlan4 from LOADING to FULL, Loading Done Sep 26 2019 21:43:23 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxy on Vlan777 from LOADING to FULL, Loading Done Sep 26 2019 21:43:24 EET1: %OSPF-5-ADJCHG: Process xxxx, Nbr xxxx on Vlan777 from LOADING to FULL, Loading Done Sep 26 2019 22:04:57 EET1: %SYS-6-TTY_EXPIRE_TIMER: (exec timer expired, tty 1 (xxxx)), user xxx Sep 26 2019 22:04:57 EET1: %SYS-6-LOGOUT: User xxxx has exited tty session 1(xxxx) Sep 26 2019 22:21:42 EET1: %SEC_LOGIN-5-LOGIN_SUCCESS: Login Success [user: xxxx] [Source: xxxx] [localport: 22] at 22:21:42 EET1 Thu Sep 26 2019 Sep 26 2019 22:32:37 EET1: %SYS-6-TTY_EXPIRE_TIMER: (exec timer expired, tty 1 (xxxx)), user xxxx Sep 26 2019 22:32:37 EET1: %SYS-6-LOGOUT: User xxxx has exited tty session 1(x.x.x.x) Sep 26 2019 22:44:35 EET1: %SEC_LOGIN-5-LOGIN_SUCCESS: Login Success [localport: 22] at 22:44:35 EET1 Thu Sep 26 2019 border1# Any help would be deeply appreciated as I am not sure where to focus on at this point. Kind regards, Markel Stefo
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Labels:
10-02-2019
Hi, Just wanted to update the case, I still have not been able to
pinpoint the issue but I have redu...
09-27-2019
Hi Marce, First of all thanks for the response!I have already check
physical connections and everyth...
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| Date Registered | 04-18-2018 01:07 AM |
| Date Last Visited | 12-30-2019 03:21 AM |
| Total Messages Posted | 5 |
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