[j-nsp] Juniper M10i MLPPP issue

Dan Rautio drautio at juniper.net
Sun Jun 10 10:39:01 EDT 2007


Hi Fahad,

Are the output drops increasing on R1 e1-1/1/8?  Can you try basic
things like link integrity by disabling mlppp and see if the link works?


- Dan

> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> FAHAD ALI KHAN
> Sent: Friday, June 08, 2007 5:42 AM
> To: juniper-nsp
> Subject: [j-nsp] Juniper M10i MLPPP issue
> 
> 
>  Guys.....Im trying to configure MLPPP link (over E1) between 
> two Juniper
> M10is in my test lab...and want to discover the possible load (CPU and
> Memory) that can survive without any service intruption...but 
> i got stuck in
> one place...i have M10is with AS PIC installed. The scenario is very
> simple....and i got success in creating MLPPP between all the 
> routers but
> one MLPPP fails...didn't allow me to PING interface IP....no 
> OSPf...means
> not functionining....folowing are the configuration and stats of those
> routers,
> *R1:*
> 
> interfaces e1-1/1/8
> 
> unit 0 {
> 
>     family mlppp {
> 
>         bundle lsq-0/2/0.2;
> 
>     }
> 
> }
> 
> 
> 
> interfaces lsq-0/2/0
> 
> unit 2 {
> 
>     encapsulation multilink-ppp;
> 
>     family inet {
> 
>         address 10.0.0.1/30;
> 
>     }
> 
> }
> 
> *R2:*
> 
> interfaces e1-1/0/0
> 
> unit 0 {
> 
>     family mlppp {
> 
>         bundle lsq-0/2/0.0;
> 
>     }
> 
> }
> 
> 
> 
> interfaces lsq-0/2/0
> 
> unit 0 {
> 
>     encapsulation multilink-ppp;
> 
>     family inet {
> 
>         address 10.0.0.2/30;
> 
>     }
> 
> }
> 
> 
> 
> *R1:*
> 
> *run show interfaces e1-1/1/8 extensive *
> 
> Physical interface: e1-1/1/8, Enabled, Physical link is Up
> 
>   Device flags   : Present Running
> 
>   Interface flags: Point-To-Point SNMP-Traps 16384
> 
>   Input errors:
> 
>     Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 
> 0, Policed
> discards: 0, L3 incompletes: 0,
> 
>     L2 channel errors: 0, L2 mismatch timeouts: 0, HS link 
> CRC errors: 0,
> SRAM errors: 0, Resource errors: 0
> 
>   Output errors:
> 
>     Carrier transitions: 0, Errors: 0, Drops: 958649, Aged 
> packets: 0, MTU
> errors: 0, Resource errors: 0
> 
>   Logical interface e1-1/1/8.0 (Index 148) (SNMP ifIndex 248) 
> (Generation
> 608)
> 
>     Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
> 
>     Protocol mlppp, Multilink bundle: lsq-0/2/0.2, MTU: 1532, 
> Generation:
> 741, Route table: 0
> 
> *run show interfaces lsq-0/2/0.2 extensive *
> 
>   Logical interface lsq-0/2/0.2 (Index 172) (SNMP ifIndex 
> 272) (Generation
> 570)
> 
>     Flags: Point-To-Point SNMP-Traps Encapsulation: Multilink-PPP
> 
>     Bandwidth: 2048kbps
> 
>       Sequence number format          long (24 bits)
> 
>       Fragmentation threshold         0
> 
>       Links needed to sustain bundle  1
> 
>       Bundle status:
> 
>       Received sequence number        0xffffff         // 
> sequence number
> assigned look suspicious
> 
>       Transmit sequence number        0x24             
> //sequence number
> assigned
> 
>       Packet drops                    0 (0 bytes)
> 
>       Fragment drops                  0 (0 bytes)
> 
>       MRRU exceeded                   0
> 
>       Fragment timeout                0
> 
>       Missing sequence number         0
> 
>       Out-of-order sequence number    0
> 
>       Out-of-range sequence number    0
> 
>       Packet data buffer overflow     0
> 
>       Fragment data buffer overflow   0
> 
>     Statistics         Frames        fps         Bytes          bps
> 
>     Bundle:
> 
>       Fragments:
> 
>         Input :             0          0             0        
>     0 // No
> Input traffic from R2 to R1
> 
>         Output:           655          0         99636        
>  1104 // Only
> Output traffic from R1 to R2
> 
>       Packets:
> 
>         Input :             0          0             0            0
> 
>         Output:           230          0         21067            0
> 
>     Link:
> 
>       e1-1/1/8.0
> 
>         Input :             0          0             0        
>     0 // No
> Input traffic from R2 to R1
> 
>         Output:            59          0          9434        
>  1104 // Only
> Output traffic from R1 to R2
> 
>     Protocol inet, MTU: 1532, Generation: 742, Route table: 0
> 
>       Flags: None
> 
>       Addresses, Flags: Is-Preferred Is-Primary
> 
>         Destination: 10.0.0.0/30, Local: 10.0.0.1 , 
> Broadcast: Unspecified,
> Generation: 476
> 
>     Protocol mpls, MTU: 1520, Generation: 703, Route table: 0
> 
>       Flags: None
> 
> *R2:*
> 
> *run show interfaces e1-1/0/0 extensive *
> 
> Physical interface: e1-1/0/0, Enabled, Physical link is Up
> 
>   Device flags   : Present Running
> 
>   Interface flags: Point-To-Point SNMP-Traps 16384
> 
>   Input errors:
> 
>     Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 
> 0, Policed
> discards: 0, L3 incompletes: 0,
> 
>     L2 channel errors: 0, L2 mismatch timeouts: 1, HS link 
> CRC errors: 0,
> SRAM errors: 0, Resource errors: 0
> 
>   Output errors:
> 
>     Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0, MTU
> errors: 0, Resource errors: 0
> 
>   Logical interface e1-1/0/0.0 (Index 116) (SNMP ifIndex 144) 
> (Generation
> 143)
> 
>     Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
> 
>     Protocol mlppp, Multilink bundle: lsq-0/2/0.0, MTU: 1532, 
> Generation:
> 219, Route table: 0
> 
> 
> 
> *run show interfaces lsq-0/2/0.0 extensive ***
> 
>   Logical interface lsq-0/2/0.0 (Index 119) (SNMP ifIndex 
> 149) (Generation
> 141)
> 
>     Flags: Point-To-Point SNMP-Traps Encapsulation: Multilink-PPP
> 
>     Bandwidth: 2048kbps
> 
>     Bundle options:
> 
>       Sequence number format          long (24 bits)
> 
>     Bundle status:
> 
>       Received sequence number        0x0       // Sequence number not
> assigned
> 
>       Transmit sequence number        0x0       // Sequence number not
> assigned
> 
>       Packet drops                    0 (0 bytes)
> 
>       Fragment drops                  0 (0 bytes)
> 
>       MRRU exceeded                   0
> 
>       Fragment timeout                0
> 
>       Missing sequence number         0
> 
>       Out-of-order sequence number    0
> 
>       Out-of-range sequence number    0
> 
>       Packet data buffer overflow     0
> 
>       Fragment data buffer overflow   0
> 
>     Statistics         Frames        fps         Bytes          bps
> 
>     Bundle:
> 
>       Fragments:
> 
>         Input :           667          0         99143        
>   512  // Only
> Input Traffic from R1 to R2
> 
>         Output:             0          0             0        
>     0  // No
> Output traffic from R2 to r1
> 
>       Packets:
> 
>         Input :             0          0             0            0
> 
>         Output:            22          0          1056            0
> 
>     Link:
> 
>       e1-1/0/0.0
> 
>         Input :            71          0         10729        
>   512  // Only
> Input Traffic from R1 to R2
> 
>         Output:             0          0             0        
>     0  // No
> Output traffic from R2 to R1
> 
>     Protocol inet, MTU: 1532, Generation: 220, Route table: 0
> 
>       Flags: None
> 
>       Addresses, Flags: Is-Preferred Is-Primary
> 
>         Destination: 10.0.0.0/30, Local: 10.0.0.2 , 
> Broadcast: Unspecified,
> Generation: 216
> 
>     Protocol mpls, MTU: 1520, Generation: 217, Route table: 0
> 
>       Flags: None
> 
> 
> 
> *PING STATS*
> 
> *R1 End:*
> 
> run ping 10.0.0.2
> 
> PING 10.0.0.1(10.0.0.1): 56 data bytes
> 
> ^C
> 
> --- 10.0.0.1 ping statistics ---
> 
> 4 packets transmitted, 0 packets received, 100% packet loss
> 
> *R2 End:*
> 
> run ping 10.0.0.1
> 
> PING 10.0.0.1 (10.0.0.1): 56 data bytes
> 
> ^C
> 
> --- 10.0.0.1 ping statistics ---
> 
> 4 packets transmitted, 0 packets received, 100% packet loss
> 
> 
> 
> *R2 LOGS:*
> 
> Jun  4 14:07:15  R2 /kernel: [mlppp] e1-1/0/0.0 joins lsq-0/2/0.0
> 
> Jun  4 14:07:15  R2 /kernel: [mlppp] e1-1/0/0.0 of lsq-0/2/0.0 is up
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT <UpDown> e1-1/0/0.0 index 116 <Up
> Broadcast PointToPoint Multicast>
> 
> Jun  4 14:07:15  R2 mib2d[2978]: SNMP_TRAP_LINK_UP: ifIndex 144,
> ifAdminStatus up(1), ifOperStatus up(1), ifName e1-1/0/0.0
> 
> Jun  4 14:07:15  R2 mib2d[2978]: SNMP_TRAP_LINK_UP: ifIndex 149,
> ifAdminStatus up(1), ifOperStatus up(1), ifName lsq-0/2/0.0
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT <Bandwidth UpDown> 
> lsq-0/2/0.0 index
> 119 <Up Broadcast PointToPoint Multicast> address #0
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT UpDown lsq-0/2/0.0 index 119 <Up
> Broadcast PointToPoint Multicast>
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT UpDown lsq-0/2/0.0 index 119 <Up
> Broadcast PointToPoint Multicast>
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT UpDown lsq-0/2/0.0 index 
> 119 10.0.0.2->
> 10.0.0.2 <Up Broadcast PointToPoint Multicast>
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT <> lsq-0/2/0.0 index 119 
> <Up Broadcast
> PointToPoint Multicast> address #0
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT UpDown lsq-0/2/0.0 index 
> 119 <Broadcast
> PointToPoint Multicast>
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT UpDown lsq-0/2/0.0 index 
> 119 10.0.0.2->
> 10.0.0.2 <Broadcast PointToPoint Multicast Localup>
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT <> lsq-0/2/0.0 index 119 
> <Up Broadcast
> PointToPoint Multicast> address #0
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT UpDown lsq-0/2/0.0 index 119 <Up
> Broadcast PointToPoint Multicast>
> 
> Jun  4 14:07:15  R2 rpd[2980]: EVENT UpDown lsq-0/2/0.0 index 
> 119 10.0.0.2->
> 10.0.0.2 <Up Broadcast PointToPoint Multicast>
> 
> 
> 
> Logs and stats shows MLPPP link is UP and Running but it wont 
> work....from
> R1 number of other MLPPP link are runining with the same 
> configuration...but
> with R2 this is the first MLPPP link..and it fails...this can 
> be due to AS
> PIC but AS PIC is just fine as there is no logs regarding AS 
> PIC.....also i
> am successfully runing GRE tunneling between R1 and R2 using 
> the same AS
> PIC.
> 
> 
> 
> Kindly check
> 
> 
> 
> Regards
> 
> 
> 
> Fahad
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
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