Moving from 10mbit to 20mbit circuit on a 2620 router

Discussion in 'Cisco' started by Steve Christensen, Sep 20, 2005.

  1. I currently have a Cisco 2620 router with a 10mbit circuit coming into
    it from my ISP. The router is connected via ethernet to a Netgear
    gigabit switch which is in turn connected to two servers. There is
    also a T-1 line coming out of the router going to another router. I am
    about to upgrade to a 20 mbit circuit and my ISP tells me ----

    "Right now we bring in the 10meg on a 10 meg transport. Since we are
    upgrading to 20meg we have to bring the transport in on 100meg and you
    will have to adjust your end to handle 100meg transport."

    What do I need to do to make this happen. I presume I need to change
    some settings in my router, but what? I have included the results of
    show interface on the router below.

    Thanks for guidance. My understanding is that Cisco no longer supports
    this router.

    Steve Christensen


    Cisco2620#show interface

    FastEthernet0/0 is up, line protocol is up
    Hardware is AmdFE, address is 0003.e342.6b00 (bia 0003.e342.6b00)
    Internet address is xx.xxx.xxx.xx/30
    MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
    reliability 255/255, txload 98/255, rxload 3/255
    Encapsulation ARPA, loopback not set
    Keepalive set (10 sec)
    Full-duplex, 10Mb/s, 100BaseTX/FX
    ARP type: ARPA, ARP Timeout 04:00:00
    Last input 00:00:55, output 00:00:00, output hang never
    Last clearing of "show interface" counters never
    Queueing strategy: fifo
    Output queue 0/40, 0 drops; input queue 0/75, 9 drops
    5 minute input rate 122000 bits/sec, 227 packets/sec
    5 minute output rate 3865000 bits/sec, 376 packets/sec
    616097544 packets input, 2597940581 bytes
    Received 2754 broadcasts, 0 runts, 0 giants, 0 throttles
    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
    0 watchdog
    0 input packets with dribble condition detected
    1042449683 packets output, 533663165 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 output buffer failures, 0 output buffers swapped out

    Serial0/0 is up, line protocol is up
    Hardware is PQUICC with Fractional T1 CSU/DSU
    Interface is unnumbered. Using address of Ethernet1/0 (xx.xxx.xxx.xx)
    MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
    reliability 255/255, txload 1/255, rxload 1/255
    Encapsulation PPP, loopback not set
    Keepalive set (10 sec)
    LCP Open
    Open: IPCP
    Last input 00:00:00, output 00:00:00, output hang never
    Last clearing of "show interface" counters 5w3d
    Queueing strategy: fifo
    Output queue 0/40, 24135 drops; input queue 0/75, 0 drops
    5 minute input rate 4000 bits/sec, 3 packets/sec
    5 minute output rate 2000 bits/sec, 2 packets/sec
    23359336 packets input, 1457350577 bytes, 0 no buffer
    Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
    6355 input errors, 3458 CRC, 2841 frame, 0 overrun, 0 ignored, 55
    abort
    24243511 packets output, 3287884338 bytes, 0 underruns
    0 output errors, 0 collisions, 2 interface resets
    0 output buffer failures, 0 output buffers swapped out
    3 carrier transitions
    DCD=up DSR=up DTR=up RTS=up CTS=up

    Ethernet1/0 is up, line protocol is up
    Hardware is AmdP2, address is 0003.e342.6b10 (bia 0003.e342.6b10)
    Internet address is xx.xxx.xxx.xx/28
    MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
    reliability 254/255, txload 2/255, rxload 98/255
    Encapsulation ARPA, loopback not set
    Keepalive not set
    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
    Queueing strategy: fifo
    Output queue 0/40, 0 drops; input queue 0/75, 0 drops
    5 minute input rate 3855000 bits/sec, 373 packets/sec
    5 minute output rate 115000 bits/sec, 224 packets/sec
    1021249578 packets input, 878788820 bytes, 0 no buffer
    Received 55758 broadcasts, 0 runts, 0 giants, 0 throttles
    22968510 input errors, 22968510 CRC, 11224754 frame, 0 overrun, 0
    ignored
    0 input packets with dribble condition detected
    594135006 packets output, 1065143957 bytes, 0 underruns
    505 output errors, 0 collisions, 1 interface resets
    0 babbles, 0 late collision, 0 deferred
    505 lost carrier, 0 no carrier
    0 output buffer failures, 0 output buffers swapped out
    Steve Christensen, Sep 20, 2005
    #1
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  2. Steve Christensen

    Merv Guest

    int fast 0/0
    speed 100
    exit
    Merv, Sep 20, 2005
    #2
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  3. Steve Christensen

    Brian V Guest

    "Steve Christensen" <> wrote in message
    news:...
    >I currently have a Cisco 2620 router with a 10mbit circuit coming into
    > it from my ISP. The router is connected via ethernet to a Netgear
    > gigabit switch which is in turn connected to two servers. There is
    > also a T-1 line coming out of the router going to another router. I am
    > about to upgrade to a 20 mbit circuit and my ISP tells me ----
    >
    > "Right now we bring in the 10meg on a 10 meg transport. Since we are
    > upgrading to 20meg we have to bring the transport in on 100meg and you
    > will have to adjust your end to handle 100meg transport."
    >
    > What do I need to do to make this happen. I presume I need to change
    > some settings in my router, but what? I have included the results of
    > show interface on the router below.
    >
    > Thanks for guidance. My understanding is that Cisco no longer supports
    > this router.
    >
    > Steve Christensen
    >
    >
    > Cisco2620#show interface
    >
    > FastEthernet0/0 is up, line protocol is up
    > Hardware is AmdFE, address is 0003.e342.6b00 (bia 0003.e342.6b00)
    > Internet address is xx.xxx.xxx.xx/30
    > MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
    > reliability 255/255, txload 98/255, rxload 3/255
    > Encapsulation ARPA, loopback not set
    > Keepalive set (10 sec)
    > Full-duplex, 10Mb/s, 100BaseTX/FX
    > ARP type: ARPA, ARP Timeout 04:00:00
    > Last input 00:00:55, output 00:00:00, output hang never
    > Last clearing of "show interface" counters never
    > Queueing strategy: fifo
    > Output queue 0/40, 0 drops; input queue 0/75, 9 drops
    > 5 minute input rate 122000 bits/sec, 227 packets/sec
    > 5 minute output rate 3865000 bits/sec, 376 packets/sec
    > 616097544 packets input, 2597940581 bytes
    > Received 2754 broadcasts, 0 runts, 0 giants, 0 throttles
    > 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
    > 0 watchdog
    > 0 input packets with dribble condition detected
    > 1042449683 packets output, 533663165 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 output buffer failures, 0 output buffers swapped out
    >
    > Serial0/0 is up, line protocol is up
    > Hardware is PQUICC with Fractional T1 CSU/DSU
    > Interface is unnumbered. Using address of Ethernet1/0 (xx.xxx.xxx.xx)
    > MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
    > reliability 255/255, txload 1/255, rxload 1/255
    > Encapsulation PPP, loopback not set
    > Keepalive set (10 sec)
    > LCP Open
    > Open: IPCP
    > Last input 00:00:00, output 00:00:00, output hang never
    > Last clearing of "show interface" counters 5w3d
    > Queueing strategy: fifo
    > Output queue 0/40, 24135 drops; input queue 0/75, 0 drops
    > 5 minute input rate 4000 bits/sec, 3 packets/sec
    > 5 minute output rate 2000 bits/sec, 2 packets/sec
    > 23359336 packets input, 1457350577 bytes, 0 no buffer
    > Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
    > 6355 input errors, 3458 CRC, 2841 frame, 0 overrun, 0 ignored, 55
    > abort
    > 24243511 packets output, 3287884338 bytes, 0 underruns
    > 0 output errors, 0 collisions, 2 interface resets
    > 0 output buffer failures, 0 output buffers swapped out
    > 3 carrier transitions
    > DCD=up DSR=up DTR=up RTS=up CTS=up
    >
    > Ethernet1/0 is up, line protocol is up
    > Hardware is AmdP2, address is 0003.e342.6b10 (bia 0003.e342.6b10)
    > Internet address is xx.xxx.xxx.xx/28
    > MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
    > reliability 254/255, txload 2/255, rxload 98/255
    > Encapsulation ARPA, loopback not set
    > Keepalive not set
    > 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
    > Queueing strategy: fifo
    > Output queue 0/40, 0 drops; input queue 0/75, 0 drops
    > 5 minute input rate 3855000 bits/sec, 373 packets/sec
    > 5 minute output rate 115000 bits/sec, 224 packets/sec
    > 1021249578 packets input, 878788820 bytes, 0 no buffer
    > Received 55758 broadcasts, 0 runts, 0 giants, 0 throttles
    > 22968510 input errors, 22968510 CRC, 11224754 frame, 0 overrun, 0
    > ignored
    > 0 input packets with dribble condition detected
    > 594135006 packets output, 1065143957 bytes, 0 underruns
    > 505 output errors, 0 collisions, 1 interface resets
    > 0 babbles, 0 late collision, 0 deferred
    > 505 lost carrier, 0 no carrier
    > 0 output buffer failures, 0 output buffers swapped out
    >


    1 thing doesn't make sense to me tho...you said it's a 2620 which is no
    longer supported, that implies to me it's not a XM version. A 2620 only has
    1 FE interface yet you say you have 2 ethernets patched (to the ISP and the
    Netgear).....Sooo, that tells me it's either a 2620 with a NM-1E module or a
    2621 or a 2620XM which is still supported by Cisco.

    If it is an older 2620 with only a single FE that you have a NM-1E running
    in it...which your show show interface implies, you will need to buy another
    router. No way to add a 2nd FE to a 2620.

    Once you get a router with a 2nd FE interface you would need to setup a rate
    limit policy on your outside ethernet inteface (your wan link) to limit it
    to 20m. 100's of examples on CCO.

    -Brian
    Brian V, Sep 20, 2005
    #3
  4. Steve Christensen

    Merv Guest

    Assuming of course that the FastEthernet interface is the one facing
    the ISP.

    With the planned volume of traffic you will probably want to consider
    having TWO Fast Ethernet interfaces, one facing ISP and the other
    facing your LAN.
    Merv, Sep 20, 2005
    #4
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