Cisco Tips & Tricks

About

I started writing this blog for my own doumentation but then I decided to make it public. All these years I have encountered critics and admirers. Critics help me in improving quality of my blogs and admirers encourage me to write more. I will be using this blog to address core technology issues which might be vendor neutral but keep on watching this page. There is more tech stuff coming your way.

 Sikandar Singh (Raman)

22 Comments »

  1. Hi Sikandar,

    I find your site very interesting that I end up reading the lines in anticipation that I might find something that I should have used or a command that may help me in troubleshooting for future problems.

    Keep up the good work…

    -Merlin

    Comment by Merlin — May 5, 2006 @ 9:26 am

  2. Hey Singh,

    I found your tips to be very useful. Can you add examples to your tips? I think they would help emphasis or better illustrate your tips. Thanks!!

    Cisco Eng

    Comment by Sisco — May 8, 2006 @ 8:42 am

  3. Hi,

    This site is very good and many thanks for thinking about it and actually setting it up!

    Cheers

    D

    Comment by Dayo — May 10, 2006 @ 7:44 am

  4. Sikander Ji

    Using this Media in order to give Tips n Tricks on any Technology especially on Cisco Technology is really astonishing one…highly impressed by your work n idea…..Hope we all,co-operate with u..n put our 100% in making this idea successful…

    Cheers!!!!

    Prabhat Kapoor

    Comment by networkofhearts — May 11, 2006 @ 10:19 am

  5. Hi,

    I want to congratulate you with this nice website. Keep up the good work

    Carpe diem

    Ward

    Comment by Ward — May 17, 2006 @ 6:01 am

  6. Hi~~

    I can English, not well.
    but, I know… here tip is Good~~
    often visit this,
    Good Luck!!!

    Comment by K-boy — May 18, 2006 @ 12:29 am

  7. This is an Excellent initiative VeerG. I’ve just perused through the homepage. but will make it a point to read thru the whole blog!!

    Thanks for sharing your experiences with Cisco boxes!

    Sincerely,
    Abhi

    Comment by Abhijit Singh — June 7, 2006 @ 6:05 pm

  8. Man…
    Your site rocks… I just love it.

    Keep doing this.

    Chanda.

    Comment by Chanda — August 9, 2006 @ 3:22 pm

  9. Hi,

    Please let me know if I could use your tips to publish it in my organization’s Knowledge Base portal?

    Thanks
    Thilak

    Comment by Thilak Rajah — August 30, 2006 @ 4:00 am

  10. Hi Sikandar,

    I like your site, its great to see other Cisco experts on the blogging scene.

    I have my own Cisco MARS blog over at ciscomars.blogspot.com that may interest you.

    Keep up the good work…

    Comment by Chris — October 19, 2006 @ 9:14 pm

  11. Dude,

    Your tips are really great! Hope you can post more in the near future. I think it will be a great help to us aspiring cisco network engineer. I really like your post about the CCIE network simulator. I have no idea it exist until now.

    Comment by Dexter — November 3, 2006 @ 10:34 am

  12. hello singh,

    you’re doing a great job for cisco engineers …!
    Best regards

    dakis

    Comment by dakis — January 29, 2007 @ 2:37 pm

  13. Very Good,

    I think I´m going to make a blog, to translate your tips into Spanish, and add a few more (of course I will submit them to you in English 😉

    The reason, is because in Spanish there is no information of nothing at all….

    “The knowledge has no sense, if you don´t share it”

    Spanish engineers are egoist, selfish people. I´m Spanish and It´s a shame, I usually post in english, because I´m angry with my community.

    I use to post in Spanish, but always alone, nobody shares nothing

    Comment by Chache — May 3, 2007 @ 9:31 pm

  14. Sorry about my english, I´m trying to improve my skills ASAP

    Comment by Chache — May 3, 2007 @ 9:33 pm

  15. Dear sikander,

    its wonderful, the content is superb, upto the point, get up of the site is nice, i mean, the look of site is really cool, is easily readable…
    Thanks,,,

    Hashim
    (Delhi, India)

    Comment by Hashim Jamal — May 9, 2007 @ 7:29 pm

  16. Hi Sikandar-

    I came across your site and am very impressed. I enjoyed reading several of your posts. I am contacting you to today to see if have an interest in taking a look at our new CCNP video training courses (and CCNA if you desire as well). We currently have the BSCI and BCMSN courses for the new CCNP exams. ONT and ISCW courses are currently being developed.

    I think these courses would appeal to your target audience, as they are highly regarded by our customers and taught by a CCIE. They would be very helpful to anybody aiming for their CCNA, CCNP and eventually the CCIE.

    If you would like to take a look we will send you a copy of each of our Cisco courses for free. If you like them, we just ask for a short post commenting or evaluating the courses with a link back to our site.

    You can see details and demos of the courses at our website, http://www.trainsignal.com.

    Thanks,

    Scott

    Comment by Scott Skinger — June 8, 2007 @ 7:20 am

  17. Hi friend ! I am also have some years experience in working with Cisco Network. I have my own site http://www.learning-cisco.com . can we make exchange link ?

    Comment by hoanginlove — June 17, 2007 @ 3:45 pm

  18. Thanks for posting such valuable information on the net.
    I graduated as a Networking Technologist from College last year.

    Sites like this will aid in questions and information that might be hard to dig up in the books.

    Comment by Renato — November 4, 2007 @ 8:59 pm

  19. 🙂

    Comment by bibomedia.com — March 7, 2008 @ 10:29 am

  20. Hi,

    I recently bought a cisco 2511….problem is I don’t find the 16 async lines in it, though there’s no much config done on it..
    Could you pls suggest anything on this…

    Router#sh tech-support

    —————— show version ——————

    Cisco Internetwork Operating System Software
    IOS ™ 2500 Software (C2500-J-L), Version 11.2(7a), RELEASE SOFTWARE (fc1)
    Copyright (c) 1986-1997 by cisco Systems, Inc.
    Compiled Tue 01-Jul-97 15:31 by kuong
    Image text-base: 0x0303E1EC, data-base: 0x00001000

    ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
    BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTWARE (fc1)

    Router uptime is 41 minutes
    System restarted by reload
    System image file is “flash:c2500-j-l.112-7a”, booted via flash

    cisco 2511 (68030) processor (revision L) with 14336K/2048K bytes of memory.
    Processor board ID 05918996, with hardware revision 00000000
    Bridging software.
    SuperLAT software copyright 1990 by Meridian Technology Corp).
    X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
    TN3270 Emulation software.
    1 Ethernet/IEEE 802.3 interface(s)
    2 Serial network interface(s)
    32K bytes of non-volatile configuration memory.
    8192K bytes of processor board System flash (Read ONLY)

    Configuration register is 0x2102

    —————— show running-config ——————

    Building configuration…

    Current configuration:
    !
    version 11.2
    no service udp-small-servers
    no service tcp-small-servers
    !
    hostname Router
    !
    !
    !
    interface Ethernet0
    no ip address
    shutdown
    !
    interface Serial0
    no ip address
    shutdown
    !
    interface Serial1
    no ip address
    shutdown
    !
    no ip classless
    !
    !
    line con 0
    line aux 0
    line vty 0 4
    login
    !
    end

    —————— show controllers ——————

    LANCE unit 0, idb 0xAC7B0, ds 0xAE230, regaddr = 0x2130000, reset_mask 0x2
    IB at 0xE06DAC: mode=0x0000, mcfilter 0000/0000/0100/0000
    station address 00e0.1e5d.8708 default station address 00e0.1e5d.8708
    buffer size 1524
    RX ring with 16 entries at 0xE06DF0
    Rxhead = 0xE06DF0 (0), Rxp = 0xAE24C (0)
    00 pak=0x0B0E50 ds=0xE10A2E status=0x80 max_size=1524 pak_size=0
    01 pak=0x0B0C84 ds=0xE10376 status=0x80 max_size=1524 pak_size=0
    02 pak=0x0B0AB8 ds=0xE0FCBE status=0x80 max_size=1524 pak_size=0
    03 pak=0x0B08EC ds=0xE0F606 status=0x80 max_size=1524 pak_size=0
    04 pak=0x0B0720 ds=0xE0EF4E status=0x80 max_size=1524 pak_size=0
    05 pak=0x0B0554 ds=0xE0E896 status=0x80 max_size=1524 pak_size=0
    06 pak=0x0B0388 ds=0xE0E1DE status=0x80 max_size=1524 pak_size=0
    07 pak=0x0B01BC ds=0xE0DB26 status=0x80 max_size=1524 pak_size=0
    08 pak=0x0AFFF0 ds=0xE0D46E status=0x80 max_size=1524 pak_size=0
    09 pak=0x0AFE24 ds=0xE0CDB6 status=0x80 max_size=1524 pak_size=0
    10 pak=0x0AFC58 ds=0xE0C6FE status=0x80 max_size=1524 pak_size=0
    11 pak=0x0AFA8C ds=0xE0C046 status=0x80 max_size=1524 pak_size=0
    12 pak=0x0AF8C0 ds=0xE0B98E status=0x80 max_size=1524 pak_size=0
    13 pak=0x0AF6F4 ds=0xE0B2D6 status=0x80 max_size=1524 pak_size=0
    14 pak=0x0AF528 ds=0xE0AC1E status=0x80 max_size=1524 pak_size=0
    15 pak=0x0AF35C ds=0xE0A566 status=0x80 max_size=1524 pak_size=0
    TX ring with 4 entries at 0xE06EA8, tx_count = 0
    tx_head = 0xE06EA8 (0), head_txp = 0xAE2A0 (0)
    tx_tail = 0xE06EA8 (0), tail_txp = 0xAE2A0 (0)
    00 pak=0x000000 ds=0xE32D2E status=0x43 status2=0x0000 pak_size=342
    01 pak=0x000000 ds=0xE3195A status=0x43 status2=0x0000 pak_size=60
    02 pak=0x000000 ds=0xE32A12 status=0x43 status2=0x0000 pak_size=342
    03 pak=0x000000 ds=0xE32D2E status=0x43 status2=0x0000 pak_size=342
    0 missed datagrams, 0 overruns
    0 transmitter underruns, 0 excessive collisions
    0 single collisions, 0 multiple collisions
    0 dma memory errors, 0 CRC errors

    0 alignment errors, 0 runts, 0 giants
    0 tdr, 0 spurious initialization done interrupts
    0 no enp status, 0 buffer errors, 0 overflow errors
    0 tx_buff, 0 throttled, 0 enabled
    Lance csr0 = 0x4
    HD unit 0, idb = 0xB2760, driver structure at 0xB63E8
    buffer size 1524 HD unit 0, No cable
    cpb = 0xE1, eda = 0x4940, cda = 0x4800
    RX ring with 16 entries at 0xE14800
    00 bd_ptr=0x4800 pak=0x0B8F64 ds=0xE1EC68 status=80 pak_size=0
    01 bd_ptr=0x4814 pak=0x0B8D98 ds=0xE1E5B0 status=80 pak_size=0
    02 bd_ptr=0x4828 pak=0x0B8BCC ds=0xE1DEF8 status=80 pak_size=0
    03 bd_ptr=0x483C pak=0x0B8A00 ds=0xE1D840 status=80 pak_size=0
    04 bd_ptr=0x4850 pak=0x0B8834 ds=0xE1D188 status=80 pak_size=0
    05 bd_ptr=0x4864 pak=0x0B8668 ds=0xE1CAD0 status=80 pak_size=0
    06 bd_ptr=0x4878 pak=0x0B849C ds=0xE1C418 status=80 pak_size=0
    07 bd_ptr=0x488C pak=0x0B82D0 ds=0xE1BD60 status=80 pak_size=0
    08 bd_ptr=0x48A0 pak=0x0B8104 ds=0xE1B6A8 status=80 pak_size=0
    09 bd_ptr=0x48B4 pak=0x0B7F38 ds=0xE1AFF0 status=80 pak_size=0
    10 bd_ptr=0x48C8 pak=0x0B7D6C ds=0xE1A938 status=80 pak_size=0
    11 bd_ptr=0x48DC pak=0x0B7BA0 ds=0xE1A280 status=80 pak_size=0
    12 bd_ptr=0x48F0 pak=0x0B79D4 ds=0xE19BC8 status=80 pak_size=0
    13 bd_ptr=0x4904 pak=0x0B7808 ds=0xE19510 status=80 pak_size=0
    14 bd_ptr=0x4918 pak=0x0B763C ds=0xE18E58 status=80 pak_size=0
    15 bd_ptr=0x492C pak=0x0B7470 ds=0xE187A0 status=80 pak_size=0
    16 bd_ptr=0x4940 pak=0x0B72A4 ds=0xE180E8 status=80 pak_size=0
    cpb = 0xE1, eda = 0x5000, cda = 0x5000
    TX ring with 2 entries at 0xE15000
    00 bd_ptr=0x5000 pak=0x000000 ds=0x000000 status=80 pak_size=0
    01 bd_ptr=0x5014 pak=0x000000 ds=0x000000 status=80 pak_size=0
    02 bd_ptr=0x5028 pak=0x000000 ds=0x000000 status=80 pak_size=0
    0 missed datagrams, 0 overruns
    0 bad datagram encapsulations, 0 memory errors
    0 transmitter underruns
    0 residual bit errors
    HD unit 1, idb = 0xB9FD8, driver structure at 0xBDC60
    buffer size 1524 HD unit 1, No cable
    cpb = 0xE2, eda = 0x3140, cda = 0x3000
    RX ring with 16 entries at 0xE23000
    00 bd_ptr=0x3000 pak=0x0C07DC ds=0xE2CDB0 status=00 pak_size=0
    01 bd_ptr=0x3014 pak=0x0C0610 ds=0xE2C6F8 status=00 pak_size=0
    02 bd_ptr=0x3028 pak=0x0C0444 ds=0xE2C040 status=00 pak_size=0
    03 bd_ptr=0x303C pak=0x0C0278 ds=0xE2B988 status=00 pak_size=0
    04 bd_ptr=0x3050 pak=0x0C00AC ds=0xE2B2D0 status=00 pak_size=0
    05 bd_ptr=0x3064 pak=0x0BFEE0 ds=0xE2AC18 status=00 pak_size=0
    06 bd_ptr=0x3078 pak=0x0BFD14 ds=0xE2A560 status=00 pak_size=0
    07 bd_ptr=0x308C pak=0x0BFB48 ds=0xE29EA8 status=00 pak_size=0
    08 bd_ptr=0x30A0 pak=0x0BF97C ds=0xE297F0 status=00 pak_size=0
    09 bd_ptr=0x30B4 pak=0x0BF7B0 ds=0xE29138 status=00 pak_size=0
    10 bd_ptr=0x30C8 pak=0x0BF5E4 ds=0xE28A80 status=00 pak_size=0
    11 bd_ptr=0x30DC pak=0x0BF418 ds=0xE283C8 status=00 pak_size=0
    12 bd_ptr=0x30F0 pak=0x0BF24C ds=0xE27D10 status=00 pak_size=0
    13 bd_ptr=0x3104 pak=0x0BF080 ds=0xE27658 status=00 pak_size=0
    14 bd_ptr=0x3118 pak=0x0BEEB4 ds=0xE26FA0 status=00 pak_size=0
    15 bd_ptr=0x312C pak=0x0BECE8 ds=0xE268E8 status=00 pak_size=0
    16 bd_ptr=0x3140 pak=0x0BEB1C ds=0xE26230 status=00 pak_size=0
    cpb = 0xE2, eda = 0x3800, cda = 0x3800
    TX ring with 2 entries at 0xE23800
    00 bd_ptr=0x3800 pak=0x000000 ds=0x000000 status=80 pak_size=0
    01 bd_ptr=0x3814 pak=0x000000 ds=0x000000 status=80 pak_size=0
    02 bd_ptr=0x3828 pak=0x000000 ds=0x000000 status=80 pak_size=0
    0 missed datagrams, 0 overruns
    0 bad datagram encapsulations, 0 memory errors
    0 transmitter underruns
    0 residual bit errors

    —————— show stacks ——————

    Minimum process stacks:
    Free/Size Name
    668/2000 Setup
    1328/2000 Autoinstall
    2780/4000 Init
    3480/4000 BootP Resolver
    2928/4000 Exec

    Interrupt level stacks:
    Level Called Unused/Size Name
    1 0 2000/2000 CL-CD2430 transmit interrupts
    2 0 2000/2000 CL-CD2430 receive interrupts
    3 0 2000/2000 Serial interface state change interrupt
    4 16 1852/2000 Network interfaces
    5 11438 1896/2000 Console Uart

    —————— show interfaces ——————

    Ethernet0 is administratively down, line protocol is down
    Hardware is Lance, address is 00e0.1e5d.8708 (bia 00e0.1e5d.8708)
    MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 252/255, load 1/255
    Encapsulation ARPA, loopback not set, keepalive set (10 sec)
    ARP type: ARPA, ARP Timeout 04:00:00
    Last input never, output 00:40:56, 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 0 bits/sec, 0 packets/sec
    5 minute output rate 0 bits/sec, 0 packets/sec
    0 packets input, 0 bytes, 0 no buffer
    Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
    0 input packets with dribble condition detected
    16 packets output, 2387 bytes, 0 underruns
    16 output errors, 0 collisions, 1 interface resets
    0 babbles, 0 late collision, 0 deferred
    16 lost carrier, 0 no carrier
    0 output buffer failures, 0 output buffers swapped out
    Serial0 is administratively down, line protocol is down
    Hardware is HD64570
    MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
    Encapsulation HDLC, loopback not set, keepalive set (10 sec)
    Last input never, output never, output hang never
    Last clearing of “show interface” counters never
    Input queue: 0/75/0 (size/max/drops); Total output drops: 0
    Queueing strategy: weighted fair
    Output queue: 0/64/0 (size/threshold/drops)
    Conversations 0/0 (active/max active)
    Reserved Conversations 0/0 (allocated/max allocated)
    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 no buffer
    Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
    0 packets output, 0 bytes, 0 underruns
    0 output errors, 0 collisions, 14 interface resets
    0 output buffer failures, 0 output buffers swapped out
    0 carrier transitions
    DCD=down DSR=down DTR=down RTS=down CTS=down
    Serial1 is administratively down, line protocol is down
    Hardware is HD64570
    MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
    Encapsulation HDLC, loopback not set, keepalive set (10 sec)
    Last input never, output never, output hang never
    Last clearing of “show interface” counters never
    Input queue: 0/75/0 (size/max/drops); Total output drops: 0
    Queueing strategy: weighted fair
    Output queue: 0/64/0 (size/threshold/drops)
    Conversations 0/0 (active/max active)
    Reserved Conversations 0/0 (allocated/max allocated)
    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 no buffer
    Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
    0 packets output, 0 bytes, 0 underruns
    0 output errors, 0 collisions, 1 interface resets
    0 output buffer failures, 0 output buffers swapped out
    0 carrier transitions
    DCD=down DSR=down DTR=down RTS=down CTS=down

    —————— show process memory ——————

    Total: 16365756, Used: 1118920, Free: 15246836
    PID TTY Allocated Freed Holding Getbufs Retbufs Process
    0 0 176832 1236 954400 0 0 *Init*
    0 0 380 24324 380 0 0 *Sched*
    0 0 1330588 391624 8808 323940 0 *Dead*
    1 0 256 256 1720 0 0 Load Meter
    2 0 47748 46852 39504 0 0 Exec
    3 0 0 0 2720 0 0 Check heaps
    4 0 92 0 2812 0 0 Pool Manager
    5 0 256 256 2720 0 0 Timers
    6 0 92 0 2812 0 0 ARP Input
    7 0 92 0 2812 0 0 SERIAL A’detect
    8 0 92 0 4812 0 0 IP Input
    9 0 488 256 2952 0 0 CDP Protocol
    10 0 232 0 2952 0 0 MOP Protocols
    11 0 0 0 3720 0 0 IP Background
    12 0 0 0 2720 0 0 TCP Timer
    13 0 0 0 4720 0 0 TCP Protocols
    14 0 232 0 2952 0 0 Probe Input
    15 0 92 0 2812 0 0 RARP Input
    16 0 908 0 3628 0 0 BOOTP Server
    17 0 0 0 2720 0 0 IP Cache Ager
    18 0 92 0 2812 0 0 NBF Input
    19 0 256 256 2720 0 0 SPX Input
    20 0 92 0 2812 0 0 Critical Bkgnd
    21 0 7504 0 3064 0 0 Net Background
    22 0 348 256 2812 0 0 Logger
    23 0 14764 256 2848 0 0 TTY Background
    24 0 0 0 2720 0 0 Per-Second Jobs
    25 0 1752 1752 2720 0 0 Net Periodic
    27 0 184 0 2904 0 0 Net Input
    28 0 256 256 1720 0 0 Compute load avgs
    29 0 0 0 2720 0 0 Per-minute Jobs
    30 0 184 0 2904 0 0 IP-RT Background
    32 0 0 0 2720 0 0 LAPB Timer
    33 0 0 0 4320 0 0 X25 Timer
    34 0 488 256 2952 0 0 CCP manager
    35 0 488 256 4952 0 0 PPP manager
    36 0 512 256 2976 0 0 Multilink PPP
    37 0 488 256 2952 0 0 Multilink PPP out
    38 0 232 0 2952 0 0 FR LMI
    39 0 232 0 2952 0 0 FR ARP
    40 0 0 0 2720 0 0 FR Broadcast Output
    41 0 300 0 3020 0 0 FR TUNNEL
    1117948 Total

    —————— show process cpu ——————

    CPU utilization for five seconds: 20%/14%; one minute: 13%; five minutes: 10%
    PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
    1 16 493 32 0.08% 0.00% 0.00% 0 Load Meter
    2 3136 78 40205 5.89% 3.83% 0.89% 0 Exec
    3 4036 84 48047 0.00% 0.22% 0.14% 0 Check heaps
    4 0 1 0 0.00% 0.00% 0.00% 0 Pool Manager
    5 4 2 2000 0.00% 0.00% 0.00% 0 Timers
    6 0 42 0 0.00% 0.00% 0.00% 0 ARP Input
    7 0 1 0 0.00% 0.00% 0.00% 0 SERIAL A’detect
    8 4 42 95 0.00% 0.00% 0.00% 0 IP Input
    9 24 248 96 0.00% 0.00% 0.00% 0 CDP Protocol
    10 0 6 0 0.00% 0.00% 0.00% 0 MOP Protocols
    11 112 2543 44 0.00% 0.00% 0.00% 0 IP Background
    12 16 500 32 0.00% 0.00% 0.00% 0 TCP Timer
    13 0 1 0 0.00% 0.00% 0.00% 0 TCP Protocols
    14 0 1 0 0.00% 0.00% 0.00% 0 Probe Input
    15 0 1 0 0.00% 0.00% 0.00% 0 RARP Input
    16 4 1 4000 0.00% 0.00% 0.00% 0 BOOTP Server
    17 8 42 190 0.00% 0.00% 0.00% 0 IP Cache Ager
    18 0 42 0 0.00% 0.00% 0.00% 0 NBF Input
    19 4 2 2000 0.00% 0.00% 0.00% 0 SPX Input
    20 0 1 0 0.00% 0.00% 0.00% 0 Critical Bkgnd
    21 28 6 4666 0.00% 0.00% 0.00% 0 Net Background
    22 8 5 1600 0.00% 0.00% 0.00% 0 Logger
    23 88 2454 35 0.00% 0.00% 0.00% 0 TTY Background
    24 8 2494 3 0.00% 0.00% 0.00% 0 Per-Second Jobs
    25 420 2494 168 0.00% 0.01% 0.00% 0 Net Periodic
    27 0 1 0 0.00% 0.00% 0.00% 0 Net Input
    28 0 494 0 0.00% 0.00% 0.00% 0 Compute load avgs
    29 1980 42 47142 0.00% 0.06% 0.05% 0 Per-minute Jobs
    30 0 43 0 0.00% 0.00% 0.00% 0 IP-RT Background
    32 0 2 0 0.00% 0.00% 0.00% 0 LAPB Timer
    33 0 2 0 0.00% 0.00% 0.00% 0 X25 Timer
    34 0 2 0 0.00% 0.00% 0.00% 0 CCP manager
    35 4 2 2000 0.00% 0.00% 0.00% 0 PPP manager
    36 8 2460 3 0.00% 0.00% 0.00% 0 Multilink PPP
    37 4 2 2000 0.00% 0.00% 0.00% 0 Multilink PPP out
    38 0 2 0 0.00% 0.00% 0.00% 0 FR LMI
    39 4 1 4000 0.00% 0.00% 0.00% 0 FR ARP
    40 36 24758 1 0.00% 0.00% 0.00% 0 FR Broadcast Output
    41 0 125 0 0.00% 0.00% 0.00% 0 FR TUNNEL

    —————— show buffers ——————

    Buffer elements:
    500 in free list (500 max allowed)
    38 hits, 0 misses, 0 created

    Public buffer pools:
    Small buffers, 104 bytes (total 50, permanent 50):
    50 in free list (20 min, 150 max allowed)
    26 hits, 0 misses, 0 trims, 0 created
    0 failures (0 no memory)
    Middle buffers, 600 bytes (total 25, permanent 25):
    25 in free list (10 min, 150 max allowed)
    35 hits, 0 misses, 0 trims, 0 created
    0 failures (0 no memory)
    Big buffers, 1524 bytes (total 50, permanent 50):
    50 in free list (5 min, 150 max allowed)
    3 hits, 0 misses, 0 trims, 0 created
    0 failures (0 no memory)
    VeryBig buffers, 4520 bytes (total 10, permanent 10):
    10 in free list (0 min, 100 max allowed)
    0 hits, 0 misses, 0 trims, 0 created
    0 failures (0 no memory)
    Large buffers, 5024 bytes (total 0, permanent 0):
    0 in free list (0 min, 10 max allowed)
    0 hits, 0 misses, 0 trims, 0 created
    0 failures (0 no memory)
    Huge buffers, 18024 bytes (total 0, permanent 0):
    0 in free list (0 min, 4 max allowed)
    0 hits, 0 misses, 0 trims, 0 created
    0 failures (0 no memory)

    Interface buffer pools:
    Ethernet0 buffers, 1524 bytes (total 32, permanent 32):
    8 in free list (0 min, 32 max allowed)
    24 hits, 0 fallbacks
    8 max cache size, 8 in cache
    Serial0 buffers, 1524 bytes (total 32, permanent 32):
    7 in free list (0 min, 32 max allowed)
    25 hits, 0 fallbacks
    8 max cache size, 8 in cache
    Serial1 buffers, 1524 bytes (total 32, permanent 32):
    7 in free list (0 min, 32 max allowed)
    25 hits, 0 fallbacks
    8 max cache size, 8 in cache

    Router#
    Router#

    Comment by Pramod — October 12, 2008 @ 8:37 pm

  21. First of all to Pramod, that would have been posted privately since the about page isnt Cisco TAC. btw: your answer is to do “show line” and configure the line # in the global configuration and change transport input/output, etc. You are not going to see the async interfaces on the C2511.

    Second to Sikandar, you have a great website on keeping valuable notes. Keep up the good work, I really like the info in here. Good luck on your next CCIE attempt! Hopefully the boot camp helped out.
    —-
    Danny
    CCIEx3- SP/R&S/Security

    Comment by Danny Tsai — November 11, 2008 @ 9:56 pm

  22. Great work Sikandar sahib. This is a great site.

    Manish Behal
    CCIE# 22198 [RS]

    Comment by Manish Behal — December 2, 2008 @ 9:52 am


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