[c-nsp] ASR9k to 6500 optic incompatibility

cisconsp at SecureObscure.com cisconsp at SecureObscure.com
Wed Nov 9 18:59:31 EST 2011


Good evening list,

 

Cisco has claimed that the following optics are compatible:

 

SFP-GE-S= 

 1000BASE-SX SFP transceiver module for MMF, 850-nm wavelength, extended
operating temperature range and DOM support, dual LC/PC connector 

 

GLC-SX-MM= 

 1000BASE-SX SFP transceiver module for MMF, 850-nm wavelength, dual LC/PC
connector 

 

I have a mindbender of a problem going on in both the lab and production
currently. I have an ASR9006 running IOX 4.1.1 with:

 

NAME: "module 0/0/CPU0", DESCR: "2-Port 10GE, 20-Port GE Line Card, Requires
XFPs and SFPs"

PID: A9K-2T20GE-B      , VID: V04, SN: FOC152786XX

 

And in port 19 a SFP-GE-S:

 

NAME: "module mau GigabitEthernet0/0/CPU0/19", DESCR: "1000BASE-SX SFP
(DOM), MMF, 550/220m"

PID: SFP-GE-S           , VID: V01 , SN: FNS15411KXX

 

The interface on the asr is showing up/up.

 

RP/0/RSP0/CPU0:oma00-dev-asr9006-1# show int gig0/0/0/19

Wed Nov  9 23:48:20.306 UTC

GigabitEthernet0/0/0/19 is up, line protocol is up 

  Interface state transitions: 7

  Hardware is GigabitEthernet, address is 4055.3954.2d9d (bia
4055.3954.2d9d)

  Internet address is 1.1.1.1/30

  MTU 1514 bytes, BW 1000000 Kbit (Max: 1000000 Kbit)

     reliability 255/255, txload 0/255, rxload 0/255

  Encapsulation ARPA,

  Full-duplex, 1000Mb/s, SXFD, link type is force-up

  output flow control is off, input flow control is off

  loopback not set,

  ARP type ARPA, ARP timeout 04:00:00

  Last input never, output 00:05:04

  Last clearing of "show interface" counters never

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

     0 packets input, 0 bytes, 0 total input drops

     0 drops for unrecognized upper-level protocol

     Received 0 broadcast packets, 0 multicast packets

              0 runts, 0 giants, 0 throttles, 0 parity

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     3 packets output, 192 bytes, 0 total output drops

     Output 3 broadcast packets, 0 multicast packets

     0 output errors, 0 underruns, 0 applique, 0 resets

     0 output buffer failures, 0 output buffers swapped out

     7 carrier transitions

 

On the other end of the tested 3m multimode jumper is a catalyst 6500
running SXJ1 with:

 

NAME: "6", DESCR: "VS-S720-10G 5 ports Supervisor Engine 720 10GE Rev. 3.1"

PID: VS-S720-10G       ,                     VID: V04, SN: SAL13431RXX

 

The optic on the 6k is a GLC-SX-MM:

 

oma00-dev-c6506-1(config-if)# do show idprom int gig6/1

 

Transceiver Serial EEPROM Contents:

Common block:

 Identifier        : SFP [0x03]

 Connector         : LC [0x07]

 Transceiver

  Speed            : Unspecified [0x00]

  Media            : Unspecified [0x00]

  Technology       : Unspecified [0x00]

  Link Length      : [0x01]

  GE Comp Codes    : Unspecified [0x00]

  SONET Comp Codes : Unspecified [0x00]

 Encoding          : 8B10B [0x01]

 BR, Nominal       : 13x100 MHz [0x0D]

 Length(9u)        : Transceiver does not support single mode fibre,

                     or the length information must be determined from

                     the transceiver technology. [0x00]

 Length(50u)       : 55 x 10 m [0x37]

 Length(62.5u)     : 27 x 10 m [0x1B]

 Length(Copper)    : Transceiver does not support copper cables,

                     or the length information must be determined from

                     the transceiver technology. [0x00]

 Vendor Name       : CISCO-FINISAR   

 Vendor OUI        : 0x0 0x90 0x65 

 Vendor PN         : FTLF8519P2BCL-C5

 Vendor rev        : A   

 CC_BASE           : 0x5F

 

Extended ID Fields

 Options           : Loss of Signal implemented TX_DISABLE is implemented
and disables the serial output

 BR, max           : Unspecified 0%

 BR, min           : Unspecified 0%

 Vendor SN         : FNS15251SXX     

 Date code         : 110618  

 CC_EXT            : 0xDA

 

Vendor Specific ID Fields:

 

  0x00: 00 00 02 D3 FB D3 38 43 25 7F 85 76 0A E3 08 51

  0x10: A0 2A 22 00 00 00 00 00 00 00 00 00 D6 D5 78 3A

 

 Product ID        : Unspecified

 Version ID        : Unspecified

 

And interface Gig6/1 on the 6k is down/down:

 

oma00-dev-c6506-1(config-if)#do show int gig6/1

GigabitEthernet6/1 is down, line protocol is down (notconnect)

  Hardware is C6k 1000Mb 802.3, address is 0019.0774.3c00 (bia
0019.0774.3c00)

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, 

     reliability 255/255, txload 0/255, rxload 0/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 1000Mb/s, media type is SX

  input flow-control is off, output flow-control is desired 

  Clock mode is auto

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input never, output never, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

  L2 Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes

  L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes mcast

  L3 out Switched: ucast: 0 pkt, 0 bytes mcast: 0 pkt, 0 bytes

     0 packets input, 0 bytes, 0 no buffer

     Received 0 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 0 throttles 

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog, 0 multicast, 0 pause input

     0 input packets with dribble condition detected

     0 packets output, 0 bytes, 0 underruns

     0 output errors, 0 collisions, 2 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 0 PAUSE output

     0 output buffer failures, 0 output buffers swapped out

 

If I shutdown gig6/1 on the 6500, gig0/0/0/19 goes down on the asr9k. These
are all genuine Cisco optics and we have a TAC case pending, but as this
behavior is repeatable I thought it would be a good idea to ask for the
experience of others.

 

There is the possibility that we are missing something obvious in the
config? We are not the most experienced group with the asr9k's or IOS-XR. 

 

RP/0/RSP0/CPU0:oma00-dev-asr9006-1#show run int gig0/0/0/19

Wed Nov  9 23:57:04.766 UTC

interface GigabitEthernet0/0/0/19

 ipv4 address 1.1.1.1 255.255.255.252

!

 

oma00-dev-c6506-1#show run int gig6/1

Building configuration...

 

Current configuration : 72 bytes

!

interface GigabitEthernet6/1

 ip address 1.1.1.2 255.255.255.252

end

 

The configuration is absolutely vanilla.

 

Any help or thoughts would be greatly appreciated.

 

Thanks!

 

John

 



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