WS-X6748-SFP and 100Base-X

Hello.
Our network is based on Cisco7600 with WS-X6748-SFP modules.
As optical transceiver we use gigabitethernet GLC (1000Base-X).
In order to reduce costs can we use Fastethernet GLC 100Base-X?
Thx

Nope, that won't work. You need to use the 1000Base-X transceivers.
-brad
www.ccbootcamp.com
(please rate the post if this helps!)

Similar Messages

  • HP J4853A and Cisco SFP Module 100BASE-FX

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    This is the output from sh interface:
    GigabitEthernet0/1 is down, line protocol is down (notconnect)
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         reliability 255/255, txload 1/255, rxload 1/255
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    Keepalive not set
    Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseLX SFP
    input flow-control is off, output flow-control is unsupported
    ARP type: ARPA, ARP Timeout 04:00:00
    Last input never, output never, output hang never
    Last clearing of "show interface" counters never
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    Queueing strategy: fifo
    Output queue: 0/40 (size/max)
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    5 minute output rate 0 bits/sec, 0 packets/sec
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  • WS-X6148-FE-SFP and transceiver

    Hi,
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    Hi,
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    -> Sushil

  • Sfp and fiber optic cabling

    Hi,
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  • SFP+ AND SFP

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    I have recently purchased a Cisco WS-C2960XR-48LPD switch, which I am unable to connect back up to my 6509 switch. The only thing I can think of that might be an issue is the fact that the uplink type for the 2960 is 10Gig and the line card back on the 6509 is a 1Gig SFP line card. So, I switched to a 1Gig SFP module in the 2960 switch but to no avail. I then placed the 10Gig SFP back in the 2960 and tried to connect to the Sup2T's 10Gig GBIC uplink connection but  still this did not work.
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    switchport trunk allowed vlan all
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    1.  I agree with Glenn.  Cisco SFP/SFP+ modules only have one speed.  So your two modules must match or the link won't go up. 
    2.  Depending on the type of line card you are using, the configurtion for Gig 2/3 is missing the command "switchport trunk encapsulation dot1q".  You do not need this command in the 2960XR.

  • SFP 100BASE-LX/EX on Catalyst 6500

    Hello everybody,
    I have to connect some switches working on fiber optic with 100BASE-LX and 100BASE-EX to our 6500s.
    I had a look at the Cisco SFP lists and found that the GLC-FE-100LX and GLC-FE-100EX should do what I need, but as far as I understood our 6500 modules are not compatible with them. We have only WS-6748-SFP, which seem to support only gigabit SFPs.
    Looking at the compatibility matrices I found that the only module that can host those SFPs is the WS-X6148-FE-SFP. Probably this solution is expensive compared with the number of links we have to setup (about 10, and it's not foreseen to make more). Also, the LX and EX SFPs need to have IOS 12.2(18)SXF and 12.2(18)SXF3, respectively, and we have 12.2(18)SXD7a, so an IOS update would also be necessary.
    In the end, I'm wondering if you have any suggestion/alternative solution to solve this situation, that is not buying a bunch of unmanaged mediaconverters... or maybe you convince me that it is worth to buy that module...
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    Many thanks for your help!
    Regards,
    Adamo

    Actually, that is not correct. All of the 48 port Gig-E line cards for the 6500 are oversubscribed; it does vary by the degree of oversubscription.
    In a 6506 or a 6509 (with a Sup720) you have (2) 20 Gbps connections (per slot) to the fabric. With a WS-X6748-GE-TX you have a potential for 48 (Full Duplex) Gbps of traffic, but only 2 connections to the fabric. This yields an oversubscription rate of 1.2:1 (or 48:40) assuming a worst case scenario.
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  • 100BASE-BX10 SFP

    Hi All,
    I have several Cisco 3560C setup at multiple stations. The Cisco 3560C are connected in a daisy chain between each other using 100BASE-BX10-D and 100BASE-BX10-U SFP. So, on the first Cisco 3560C (station 1), I have a U-type connecting to the second Cisco 3560C (station 2.). The second Cisco 3560C (station 2) will have a D-type and U-type SFP where the D-type connects to the previous station 1 on its U-type SFP. This setup repeats for station 3 onwards.
    It seems that these connections between the stations, I noticed that the Cisco switch registers the link at 100Mb half-duplex and I see incrementing CRCs and collisions. I am not able to hard-code the interface to 100Mb FULL as it seems that the interface configuration does not give me the option to do a 'speed 100' or 'duplex full'.
    Is this normal for these kinds of SFP?
    Below are some outputs:
    Cisco IOS Software, C3560C Software (C3560c405-UNIVERSALK9-M), Version 12.2(55)EX3, RELEASE SOFTWARE (fc2)
    Technical Support: http://www.cisco.com/techsupport
    Copyright (c) 1986-2011 by Cisco Systems, Inc.
    Compiled Wed 10-Aug-11 07:37 by prod_rel_team
    Image text-base: 0x00003000, data-base: 0x02100000
    Switch(config)#do sh int status
    Port      Name               Status       Vlan       Duplex  Speed Type
    Fa0/1                        notconnect   15           auto   auto 10/100BaseTX
    Fa0/2                        notconnect   15           auto   auto 10/100BaseTX
    Fa0/3                        notconnect   15           auto   auto 10/100BaseTX
    Fa0/4                        notconnect   15           auto   auto 10/100BaseTX
    Fa0/5                        connected    15         a-full  a-100 10/100BaseTX
    Fa0/6                        notconnect   15           auto   auto 10/100BaseTX
    Fa0/7                        notconnect   15           auto   auto 10/100BaseTX
    Fa0/8                        notconnect   15           auto   auto 10/100BaseTX
    Fa0/9                        notconnect   15           auto   auto 10/100BaseTX
    Fa0/10                       notconnect   15           auto   auto 10/100BaseTX
    Fa0/11                       connected    trunk      a-full  a-100 10/100BaseTX
    Fa0/12                       connected    trunk      a-full  a-100 10/100BaseTX
    Gi0/1                        connected    trunk      a-half  a-100 100BaseBX-10U SFP
    Gi0/2                        connected    trunk      a-half  a-100 100BaseBX-10D SFP
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    GigabitEthernet0/1 is up, line protocol is up (connected)
      Hardware is Gigabit Ethernet, address is c025.5c11.928d (bia c025.5c11.928d)
      Description:
      MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
         reliability 254/255, txload 1/255, rxload 1/255
      Encapsulation ARPA, loopback not set
      Keepalive not set
      Half-duplex, 100Mb/s, link type is auto, media type is 100BaseBX-10D SFP
      input flow-control is off, output flow-control is unsupported
      ARP type: ARPA, ARP Timeout 04:00:00
      Last input 00:00:00, output 00:00:00, 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 80000 bits/sec, 22 packets/sec
      5 minute output rate 16000 bits/sec, 16 packets/sec
         74931 packets input, 21611558 bytes, 0 no buffer
         Received 48734 broadcasts (39982 multicasts)
         0 runts, 0 giants, 0 throttles
         667 input errors, 667 CRC, 0 frame, 0 overrun, 0 ignored
         0 watchdog, 39982 multicast, 0 pause input
         0 input packets with dribble condition detected
         23385 packets output, 3857612 bytes, 0 underruns
         0 output errors, 564 collisions, 1 interface resets
         0 babbles, 29 late collision, 0 deferred
         0 lost carrier, 0 no carrier, 0 PAUSE output
         0 output buffer failures, 0 output buffers swapped out

    Yes scope all connections with a 900 micron 200x scope, and clean anything you can.
    GLC-FE-100BX-U
    100BASE-BX10-U
    -8
    -14
    -3
    -28.2
    GLC-FE-100BX-D
    100BASE-BX10-D
    -8
    -14
    -3
    -28.2
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    Because of the CWDM going on, I'm not sure I'd trust the internal "show hard" or
    "show interfaces interface-id transceiver detail" internaly.
    Obviously this is something common/systemic since it happens betwen multiple locations.
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  • 7600+RSP 720-3CXL and 6500 Gbit ethernet modules (WS-X6748-***) compatible?

    Hello all,
    We are planning the replacement of a 7206 with a 7603-S, 7604 or 7606-S with RSP 720-3CXL to support full internet routing. The problem is RSP720 comes with only 2 x SFP and we need more L3 interfaces to terminate on the router.
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    Mario
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    Data Sheet
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    Only thing i can suggest is going through datasheets to see the difference.
    Jon

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