[j-nsp] ISIS between ERX 1440 and MX960

David Lockuan dlockuan at gmail.com
Fri May 20 14:03:09 EDT 2011


Hi David,

Could you try to put the authentication with md5? I say this because when I
was doing interoperability between JunOS and IOS, I noted that the simple
authentication don't work correctly. Maybe the hash-key is not compatible
when you use the simple authentication.

Now we are using md5 as authentication-type and point-to-point configuration
between equipments ERX, T1600, GSR and CRS.

BR,

---
David


On Fri, May 20, 2011 at 10:47 AM, Payam Chychi <pchychi at gmail.com> wrote:

> correction:
> point-to-point is configured under the interface on the erx
>
> " interface blah/0
>
> isis network point-to-point "
>
>
> -Payam
>
>
> Payam Chychi wrote:
>
>> Hey,
>>
>> Have you tried setting each side up as a. Point-to-point network? Its
>> done under protocol isis
>>
>> Try that and see if it works. If so, ur dst mac on one side is getting
>> filtered (by the device itself or perhaps your  provider)
>>
>>
>> On 5/20/11, david.roy at orange-ftgroup.com <david.roy at orange-ftgroup.com>
>> wrote:
>>
>>
>>> Hi,
>>>
>>> I don't know how to go on with the ERX. I tried many things without
>>> success.
>>> More traces below. Thanks for your help : May be a bug ?!?
>>>
>>> Regards,
>>> David
>>>
>>>
>>> ERX :
>>> #######
>>>
>>> interface loopback 50
>>>  ip address x.x.x.x 255.255.255.255
>>>  no ip redirects
>>> !
>>> interface gigabitEthernet 12/0
>>>  mtu 4488
>>>  ip address y.y.y.1 255.255.255.252
>>>  no ip redirects
>>>  ip router isis 31337
>>>  isis circuit-type level-2-only
>>>  isis authentication-key level-2 foo123
>>> !
>>> router isis 31337
>>>  is-type level-2-only
>>>  passive-interface loopback50
>>>  net 49.0001.xxxx.xxxx.xxxx.00
>>>  domain-authentication psnp
>>>  domain-authentication csnp
>>>  domain-message-digest-key 1 hmac-md5 foo123
>>>  metric-style wide
>>> !
>>>
>>>
>>> MX :
>>> #######
>>>
>>> ge-2/2/2 {
>>>    mtu 4484;
>>>    unit 0 {
>>>        family inet {
>>>            address y.y.y.2/30;
>>>        }
>>>        family iso;
>>>    }
>>> }
>>>
>>> isis {
>>>    level 2 {
>>>        authentication-key "xxxxxxxx"; ## SECRET-DATA = foo123
>>>        authentication-type md5;
>>>        wide-metrics-only;
>>>    }
>>>    interface ge-2/2/2.0 {
>>>      level 1 disable;
>>>      level 2 {
>>>          hello-authentication-key "$9$fQ39yrv8xdBIs4aJDjCtpBhS"; ##
>>> SECRET-DATA = foo123
>>>          hello-authentication-type simple;
>>>      }
>>>   }
>>> }
>>>
>>>
>>> Trace on MX :
>>> ##############
>>>
>>> show interfaces ge-2/2/2
>>> Physical interface: ge-2/2/2, Enabled, Physical link is Up
>>>  Interface index: 251, SNMP ifIndex: 556
>>>  Description: Connection To LNS
>>>  Link-level type: Ethernet, MTU: 4484, Speed: 1000mbps, BPDU Error: None,
>>> MAC-REWRITE Error: None, Loopback: Disabled,
>>>  Source filtering: Disabled, Flow control: Enabled, Auto-negotiation:
>>> Enabled, Remote fault: Online
>>>  Device flags   : Present Running
>>>  Interface flags: SNMP-Traps Internal: 0x4000
>>>  Link flags     : None
>>>  CoS queues     : 8 supported, 8 maximum usable queues
>>>  Schedulers     : 0
>>>  Current address: 84:18:88:e8:c9:9e, Hardware address: 84:18:88:e8:c9:9e
>>>  Last flapped   : 2011-05-20 11:54:46 EEST (01:08:11 ago)
>>>  Input rate     : 6144 bps (8 pps)
>>>  Output rate    : 0 bps (0 pps)
>>>  Active alarms  : None
>>>  Active defects : None
>>>
>>>  Logical interface ge-2/2/2.0 (Index 75) (SNMP ifIndex 656)
>>>    Flags: SNMP-Traps 0x4000000 Encapsulation: ENET2
>>>    Input packets : 27981
>>>    Output packets: 600
>>>    Protocol inet, MTU: 4470
>>>      Flags: Sendbcast-pkt-to-re
>>>      Addresses, Flags: Is-Preferred Is-Primary
>>>        Destination: x.x.x.x/30, Local: x.x.x.x, Broadcast: x.x.x.x
>>>    Protocol iso, MTU: 4467
>>> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<ISO MTU
>>>    Protocol multiservice, MTU: Unlimited
>>>
>>>
>>> monitor traffic interface ge-2/2/2.0 layer2-headers no-resolve size 4488
>>> verbose output suppressed, use <detail> or <extensive> for full protocol
>>> decode
>>> Address resolution is OFF.
>>> Listening on ge-2/2/2.0, capture size 4488 bytes
>>>
>>> TO ERX :
>>>
>>> 13:04:34.156857 Out 84:18:88:e8:c9:9e > 1:80:c2:0:0:15, 802.3, length
>>> 1509:
>>> LLC, dsap OSI (0xfe) Individual, ssap OSI (0xfe) Command, ctrl 0x03: OSI
>>> NLPID IS-IS (0x83): L2 Lan IIH, src-id 2131.3905.5002, lan-id
>>> 2131.3905.5002.00, prio 64, length 1492  <<< PDU length including hello
>>> padding of the MX
>>>
>>> FROM ERX :
>>>
>>> 13:04:35.450255  In 0:90:1a:41:fa:f5 > 1:80:c2:0:0:15, 802.3, length
>>> 1514:
>>> LLC, dsap OSI (0xfe) Individual, ssap OSI (0xfe) Command, ctrl 0x03: OSI
>>> NLPID IS-IS (0x83): L2 Lan IIH, src-id 1921.6801.6029, lan-id
>>> 1921.6801.6029.01, prio 64, length 1497  <<< PDU length including hello
>>> padding of the ERX
>>>
>>>
>>>
>>> Trace on ERX :
>>> ##############
>>>
>>>
>>>
>>> sho int gi 12/0
>>> GigabitEthernet12/0 is Up, Administrative status is Up
>>>  Hardware is PMC 3386, address is 0090.1a41.faf5
>>>  Primary MAU is 1000BASE-LX 10km, secondary MAU is 1000BASE-LX 10km
>>>  MTU: Operational 4488, Administrative 4488
>>> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< MTU seems good
>>>  Duplex Mode: Operational Full Duplex, Administrative Auto Negotiate
>>>  Speed: Operational 1000 Mbps, Administrative Auto Negotiate
>>>  Debounce: State is Disabled
>>>  Link: Operational Primary Link Selected,
>>>        Administrative Link Selected Automatically
>>>  Link Failover Timeout: Operational 727 ms, Administrative default
>>>  Primary link selected 258 times, Secondary link selected 252 times
>>>  Primary link signal detected, Secondary link signal not detected
>>>
>>>  No baseline has been set
>>>  5 minute input rate 1024 bits/sec, 0 packets/sec
>>>  5 minute output rate 19456 bits/sec, 12 packets/sec
>>>
>>>  In: Bytes 789821048435, Unicast 4769999720
>>>   Multicast 2224876, Broadcast 2088
>>>   Errors 0, Discards 36549, Mac Errors 0, Alignment 0  <<<<<<<<<<<<<<<<<
>>> IIH coming from MX are discarded
>>>   CRC 0, Too Longs 0, Symbol Errors 0
>>>  Out: Bytes 6824490336601, Unicast 6292729944
>>>   Multicast 4577411, Broadcast 103
>>>   Errors 0, Discards 0, Mac Errors 0, Deferred 0, No Carrier 0
>>>   Collisions: Single 0, Multiple 0, Late 0, Excessive 0
>>> Policed Statistics:
>>>  In: 0, Out: 0
>>> ARP Statistics:
>>>  In: ARP requests 211, ARP responses 8
>>>   Errors 0, Discards 6
>>>  Out: ARP requests 103, ARP responses 204
>>>   Errors 0, Discards 7
>>>
>>> Administrative qos-shaping-mode: none
>>> Operational qos-shaping-mode: frame
>>> queue 0: traffic class best-effort, bound to ethernet GigabitEthernet12/0
>>>  Queue length 0 bytes
>>>  Forwarded packets 0, bytes 0
>>>  Dropped committed packets 0, bytes 0
>>>  Dropped conformed packets 0, bytes 0
>>>  Dropped exceeded packets 0, bytes 0
>>> queue 1: traffic class control, bound to GigabitEthernet12/0
>>>  Queue length 0 bytes
>>>  Forwarded packets 22347807, bytes 1630937549
>>>  Dropped committed packets 0, bytes 0
>>>  Dropped conformed packets 0, bytes 0
>>>  Dropped exceeded packets 0, bytes 0
>>>
>>>
>>>
>>> sho clns interface gi 12/0
>>> GigabitEthernet12/0 is up, line protocol is up
>>>  Checksums Enabled, MTU 4470, Encapsulation SNAP  <<<<<<<<<< MTU ISO
>>>  Next ESH/ISH is 7 seconds
>>>  Routing Protocol: IS-IS
>>>    Circuit Type: level-2
>>>    Interface number 0x495886, local circuit ID 0x1
>>>    Level-1 Metric: 10, DIS Priority: 0, Priority: 64,
>>>            Circuit ID: BRAS3-WDOO.01
>>>            L1 Designated IS: Disabled
>>>    Number of active level-1 adjacencies: 0
>>>    Level-2 Metric: 10, DIS Priority: 64, Priority: 64,
>>>            Circuit ID: BRAS3-WDOO.01
>>>
>>>            L2 Designated IS: BRAS3-WDOO:default.01 (not us)
>>>    Number of active level-2 adjacencies: 0
>>>    Next IS-IS LAN Level-1 Hello in 0 seconds
>>>    Next IS-IS LAN Level-2 Hello in 6 seconds
>>>    BFD disabled
>>>    Mesh Group Inactive
>>>    Authentication Level-2:
>>>      Key-id:   0 Type: password*
>>>        Start Accept:   THU MAY 19 18:08:31 2011
>>>        Start Generate: THU MAY 19 18:08:31 2011
>>>        Stop Accept:    0
>>>        Stop Generate:  0
>>>
>>>
>>> sho clns traffic detail
>>> IS-IS: Baseline last set 28 days, 22 hours, 11 minutes, 17 seconds
>>> IS-IS: Corrupted LSPs: 0
>>> IS-IS: L1 LSP Database Overloads: 0
>>> IS-IS: L2 LSP Database Overloads: 0
>>> IS-IS: Area Addresses Dropped: 0
>>> IS-IS: Attempts to Exceed Max Sequence: 0
>>> IS-IS: Sequence Numbers Skipped: 0
>>> IS-IS: Total LSPs Purged: 414
>>> IS-IS: Own LSPs Purged: 0
>>> IS-IS: System ID Length Mismatches: 0
>>> IS-IS: Maximum Area Mismatches: 0
>>> IS-IS: Area/Domain Authentication Failures: 0
>>> IS-IS: Level-1 LSPs Sent: 0 Rcvd: 0 Dropped: 0
>>> IS-IS: Level-2 LSPs Sent: 3086 Rcvd: 529403 Dropped: 0
>>> IS-IS: LSP checksum errors received: 0
>>>
>>> Interface: GigabitEthernet12/0
>>> IS-IS: Baseline last set 28 days, 22 hours, 11 minutes, 17 seconds
>>> IS-IS: Protocol PDUs (in/out): 0/0
>>> IS-IS: Init Failures: 0
>>> IS-IS: Adjacencies Changes: 0
>>> IS-IS: Adjacencies Rejected: 0
>>> IS-IS: Bad LSPs: 0
>>> IS-IS: Level-1 Designated IS Changes: 2
>>> IS-IS: Level-2 Designated IS Changes: 11
>>> IS-IS: Invalid 9542s: 0
>>> IS-IS: Malformed PDU reecived: 0
>>> IS-IS: Authentication Failures: 0
>>> IS-IS: Level-1 Hellos (in/out/dropped): 0/0/0
>>> IS-IS: Level-2 Hellos (in/out/dropped): 0/300/0   <<<<<<<<<<<<< ONLY SENT
>>> IIH
>>> IS-IS: Level-1 CSNPs (in/out): 0/0
>>> IS-IS: Level-2 CSNPs (in/out): 0/0
>>> IS-IS: Level-1 PSNPs (in/out): 0/0
>>> IS-IS: Level-2 PSNPs (in/out): 0/0
>>> IS-IS: LSPs Retransmitted : 0
>>>
>>>
>>>
>>> David Roy
>>> Orange - IP Domestic Backbone - TAC
>>> Tel.   +33(0)299876472
>>> Mob. +33(0)685522213
>>> Email. david.roy at orange-ftgroup.com
>>> JNCIE-M/T  #703 ; JNCIS-ENT
>>>
>>> -----Message d'origine-----
>>> De : sthaug at nethelp.no [mailto:sthaug at nethelp.no]
>>> Envoyé : jeudi 19 mai 2011 21:35
>>> À : ROY David DTF/DERX
>>> Cc : kalirajv at gmail.com; juniper-nsp at puck.nether.net
>>> Objet : Re: [j-nsp] ISIS between ERX 1440 and MX960
>>>
>>>
>>>
>>>> 2. I tried but without success. I believe that the ISO MTU is less
>>>> than the padded hello of the MX. I will try to set mtu of the gi 12/0
>>>> of the ERX to 1518 : I will update you if it works
>>>>
>>>>
>>> We have IS-IS running between MX and ERX with no problem. Use 4 byte more
>>> for the ERX MTU than the MX MTU on the physical interfaces, and you
>>> should
>>> be all set.
>>>
>>> Example of working config below, lightly anonymized.
>>>
>>> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
>>> ----------------------------------------------------------------------
>>>
>>> interface gigabitEthernet 2/0
>>>  mtu 4488
>>>  ip address a.b.2.202 255.255.255.252
>>>  ip router isis
>>>  isis network point-to-point
>>>  isis circuit-type level-2-only
>>>
>>> interface loopback 0
>>>  ip address a.b.0.75 255.255.255.255
>>>  ip router isis
>>>  isis circuit-type level-2-only
>>>
>>> router isis
>>>  is-type level-2-only
>>>  net 47.0001.0000.0000.0075.00
>>>  metric-style wide level-2
>>>
>>> interfaces {
>>>    ge-0/0/3 {
>>>        mtu 4484;
>>>        unit 0 {
>>>            family inet {
>>>                address a.b.2.201/30;
>>>            }
>>>            family iso;
>>>        }
>>>    }
>>>    lo0 {
>>>        unit 0 {
>>>            family inet {
>>>                address a.b.0.78/32;
>>>            }
>>>            family iso {
>>>                address 47.0001.0000.0000.0078.00;
>>>            }
>>>        }
>>>    }
>>> }
>>>
>>> protocols {
>>>    isis {
>>>        level 2 wide-metrics-only;
>>>        level 1 disable;
>>>        interface ge-0/0/3.0 {
>>>            point-to-point;
>>>        }
>>>        interface lo0.0 {
>>>            level 2 passive;
>>>        }
>>>    }
>>> }
>>>
>>>
>>>
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>>
>>
>>
>
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