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1721 dosn't answer ping

 
 
DarejDok \(Dariusz Dħbrowski\)
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Posts: n/a
 
      07-10-2003
Hello,

My router 1721 sometimes dosn't answer
ping request. This router connect my LAN network
to Internet via DSL modem.
It happend while there is a big traffic flow on thats line.

I added this line to config:

scheduler allocate 4000 1000

It dosn't resolve my problem (not good enough).
Could you help me please ?

Darek



 
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DarejDok \(Dariusz Dħbrowski\)
Guest
Posts: n/a
 
      07-10-2003
About 25 users (a little).
But the effect is like here:

unavailable, time=300 ms, time=900 ms, ..., unavailable, unavailable,
unavailable ....

If I disconnect one segment of LAN (which generate bik traffic flow) router
answere correctly:
<10 ms, <10 ms, <10ms, <10ms etc..

Why does big trafic flow from LAN block ping packets ?

Darek


Użytkownik "someone" <(E-Mail Removed)> napisa³ w wiadomoĥci
news:beju0l$d0$(E-Mail Removed)...
> Hi
>
> Are you sure the packets are dropped because of the load (sh int), how

many
> users are using that router ?
>
>
>
> "DarejDok (Dariusz Dħbrowski)" <(E-Mail Removed)> a écrit
> dans le message news: bejld0$3qc$(E-Mail Removed)...
> > Hello,
> >
> > My router 1721 sometimes dosn't answer
> > ping request. This router connect my LAN network
> > to Internet via DSL modem.
> > It happend while there is a big traffic flow on thats line.
> >
> > I added this line to config:
> >
> > scheduler allocate 4000 1000
> >
> > It dosn't resolve my problem (not good enough).
> > Could you help me please ?
> >
> > Darek
> >
> >
> >

>
>



 
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Dave Phelps
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Posts: n/a
 
      07-11-2003
In article <bek4mc$gfj$(E-Mail Removed)>, "DarejDok \(Dariusz Dħbrowski\)"
<(E-Mail Removed)> says...
> Why does big trafic flow from LAN block ping packets ?
>

Big traffic flows delay all packets, not just ping.

--
Dave Phelps
DD Networks
www.ddnets.com
deadspam=tippenring
 
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DarejDok \(Dariusz Dħbrowski\)
Guest
Posts: n/a
 
      07-11-2003
I have 2 routers:
If I connect my LAN to 1603 router (ISDN line to Internet)
everything is ok. Connection from any LAN workstation
to Internet works fine, pingi to router works fine (<10ms), and
there aren't any problems. CPU utilization on router: 14%
BUT
If I connect my LAN (the same traffic - reconnect on run-time)
to 1721 router (DSL line to Internet) something is wrong:
Connection form any LAN workstation to Internet
works with breaks, ping to router works with breaks (=800ms, 300ms, timeout)
CPU utilization on router (after 1 hour): 75 %

What is the problem ?
"IP Input" process eat procesor time. But why ?

Help me please.
Below there are some extended information:

Darek


[CISCO 1603] ---------------------------------
> show proc cpu

-----------------------------------
CPU utilization for five seconds: 14%/12%; one minute: 16%; five minutes:
15%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
......
10 726628 646166 1124 1.80% 1.82% 1.47% 0 IP Input

>show version

--------------------------
Cisco Internetwork Operating System Software
IOS (tm) 1600 Software (C1600-Y-M), Version 11.3(11a)T1, RELEASE SOFTWARE
(fc1)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Fri 24-Sep-99 01:17 by pwade
Image text-base: 0x02005000, data-base: 0x023DC42C

ROM: System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
ROM: 1600 Software (C1600-RBOOT-R), Version 12.0(3)T, RELEASE SOFTWARE
(fc1)

Router uptime is 4 days, 5 hours, 16 minutes
System restarted by reload
System image file is "c1600-y-mz.113-11a.T1", booted via flash

cisco 1603 (68360) processor (revision C) with 6144K/2048K bytes of memory.
Processor board ID 16974495, with hardware revision 00000002
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
1 Ethernet/IEEE 802.3 interface(s)
1 ISDN Basic Rate interface(s)
System/IO memory with parity disabled
8192K bytes of DRAM onboard
System running from RAM
7K bytes of non-volatile configuration memory.
4096K bytes of processor board PCMCIA flash (Read/Write)

Configuration register is 0x2102


[CISCO 1721]-----------------------------------

> show proc cpu

---------------------------
CPU utilization for five seconds: 73%/75%; one minute: 81%; five minutes:
75%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
27 234564 323734 1222 81.55% 71.36% 75.83% 0 IP Input

>show version

---------------------------
Cisco Internetwork Operating System Software
IOS (tm) C1700 Software (C1700-Y-M), Version 12.2(11)T2, RELEASE SOFTWARE
(fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Mon 14-Oct-02 02:37 by ccai
Image text-base: 0x80008124, data-base: 0x807E4BA4

ROM: System Bootstrap, Version 12.2(7r)XM1, RELEASE SOFTWARE (fc1)

Linde_dsl_router uptime is 2 minutes
System returned to ROM by power-on
System image file is "flash:c1700-y-mz.122-11.T2.bin"

cisco 1721 (MPC860P) processor (revision 0x100) with 29492K/3276K bytes of
memor
y.
Processor board ID FOC06370LY8 (506863719), with hardware revision 0000
MPC860P processor: part number 5, mask 2
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
1 FastEthernet/IEEE 802.3 interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102




 
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Michael T. Hall
Guest
Posts: n/a
 
      07-13-2003
I don't suppose there are some debugging activities enabled on the 1721...

-Michael


"DarejDok (Dariusz Dħbrowski)" <(E-Mail Removed)> wrote in
message news:ben35u$cth$(E-Mail Removed)...
> I have 2 routers:
> If I connect my LAN to 1603 router (ISDN line to Internet)
> everything is ok. Connection from any LAN workstation
> to Internet works fine, pingi to router works fine (<10ms), and
> there aren't any problems. CPU utilization on router: 14%
> BUT
> If I connect my LAN (the same traffic - reconnect on run-time)
> to 1721 router (DSL line to Internet) something is wrong:
> Connection form any LAN workstation to Internet
> works with breaks, ping to router works with breaks (=800ms, 300ms,

timeout)
> CPU utilization on router (after 1 hour): 75 %
>
> What is the problem ?
> "IP Input" process eat procesor time. But why ?
>
> Help me please.
> Below there are some extended information:
>
> Darek
>
>
> [CISCO 1603] ---------------------------------
> > show proc cpu

> -----------------------------------
> CPU utilization for five seconds: 14%/12%; one minute: 16%; five minutes:
> 15%
> PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
> .....
> 10 726628 646166 1124 1.80% 1.82% 1.47% 0 IP Input
>
> >show version

> --------------------------
> Cisco Internetwork Operating System Software
> IOS (tm) 1600 Software (C1600-Y-M), Version 11.3(11a)T1, RELEASE SOFTWARE
> (fc1)
> Copyright (c) 1986-1999 by cisco Systems, Inc.
> Compiled Fri 24-Sep-99 01:17 by pwade
> Image text-base: 0x02005000, data-base: 0x023DC42C
>
> ROM: System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
> ROM: 1600 Software (C1600-RBOOT-R), Version 12.0(3)T, RELEASE SOFTWARE
> (fc1)
>
> Router uptime is 4 days, 5 hours, 16 minutes
> System restarted by reload
> System image file is "c1600-y-mz.113-11a.T1", booted via flash
>
> cisco 1603 (68360) processor (revision C) with 6144K/2048K bytes of

memory.
> Processor board ID 16974495, with hardware revision 00000002
> Bridging software.
> X.25 software, Version 3.0.0.
> Basic Rate ISDN software, Version 1.1.
> 1 Ethernet/IEEE 802.3 interface(s)
> 1 ISDN Basic Rate interface(s)
> System/IO memory with parity disabled
> 8192K bytes of DRAM onboard
> System running from RAM
> 7K bytes of non-volatile configuration memory.
> 4096K bytes of processor board PCMCIA flash (Read/Write)
>
> Configuration register is 0x2102
>
>
> [CISCO 1721]-----------------------------------
>
> > show proc cpu

> ---------------------------
> CPU utilization for five seconds: 73%/75%; one minute: 81%; five minutes:
> 75%
> PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
> 27 234564 323734 1222 81.55% 71.36% 75.83% 0 IP

Input
>
> >show version

> ---------------------------
> Cisco Internetwork Operating System Software
> IOS (tm) C1700 Software (C1700-Y-M), Version 12.2(11)T2, RELEASE SOFTWARE
> (fc1)
> TAC Support: http://www.cisco.com/tac
> Copyright (c) 1986-2002 by cisco Systems, Inc.
> Compiled Mon 14-Oct-02 02:37 by ccai
> Image text-base: 0x80008124, data-base: 0x807E4BA4
>
> ROM: System Bootstrap, Version 12.2(7r)XM1, RELEASE SOFTWARE (fc1)
>
> Linde_dsl_router uptime is 2 minutes
> System returned to ROM by power-on
> System image file is "flash:c1700-y-mz.122-11.T2.bin"
>
> cisco 1721 (MPC860P) processor (revision 0x100) with 29492K/3276K bytes of
> memor
> y.
> Processor board ID FOC06370LY8 (506863719), with hardware revision 0000
> MPC860P processor: part number 5, mask 2
> Bridging software.
> X.25 software, Version 3.0.0.
> 1 Ethernet/IEEE 802.3 interface(s)
> 1 FastEthernet/IEEE 802.3 interface(s)
> 32K bytes of non-volatile configuration memory.
> 16384K bytes of processor board System flash (Read/Write)
>
> Configuration register is 0x2102
>
>
>
>



 
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