[c-nsp] Speed problem and router seems to sluggish

[Rudy Setiawan]

Thanks Pavel for the inputs.
Apparently the cpu is quite low on the range of 6% to 10%.

I was doing additional research and found out that the DFC3B daughter card
may not be compatible with the sup720-3BXL. But will that affect on how the
traffic is acting? So when I installed the DFC3B onto the 6704-10GE, and
insert the blade after the switch has started, the system will mention about
the degradation of the system due to the incompatibility of the hardware. So
I did a reload and found out that the 10GE card was doing a PFC3B instead of
the default of the sup720 PFC3BXL.

Would the low TCAM of 239k (due to DFC3B daughter card) have something to do
with this weird traffic?

Thanks,
Rudy

On Sun, Jun 27, 2010 at 1:21 AM, Pavel Skovajsa <pavel.skovajsa at gmail.com>wrote:

> My initial thought is that the old WS-X6704-10GE card is about 6/7 years
> old, has ridiculously low buffers and generally is a pain to work with. On
> the other side it should definitively do more than 150Mbps - so it is
> probably something else.
>
> One clue what might be wrong is the fact that Catalyst 6500 starts
> responding slowly - this is hardware platform the amount of traffic
> forwarded (whether it is 150 Mbps, or 200 Gbps) should not make difference
> in the way the MSFC responds. Therefore I would suspect that you have
> probably something punted to the CPU which causes high CPU and low bandwidth
> due to the CPU busy forwarding traffic in software instead of hardware.
>
> Try doing "show proc cpu history" , "show proc cpu sorted", during the peak
> 150Mbps load and after.
>
> -pavel
>
> On Fri, Jun 25, 2010 at 11:34 PM, Rudy Setiawan <rudy at rudal.com> wrote:
>
>> Hi all,
>>
>> I need some light on this problem that I'm having.
>>
>> We implemented 2 new routers with the following devices/modules:
>>
>> core2::
>> Mod Ports Card Type                              Model              Serial
>> No.
>> --- ----- -------------------------------------- ------------------
>> -----------
>>  2    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE
>>  3    8  8 port 1000mb ethernet                 WS-X6408-GBIC
>>  4    8  8 port 1000mb GBIC Enhanced QoS        WS-X6408A-GBIC
>>  5    2  Supervisor Engine 720 (Active)         WS-SUP720-3B
>>  7    8  8 port 1000mb GBIC Enhanced QoS        WS-X6408A-GBIC
>>  8    8  8 port 1000mb ethernet                 WS-X6408-GBIC
>>  9   48  48 port 10/100 mb RJ45                 WS-X6348-RJ-45
>>
>> Mod  Sub-Module                  Model              Serial       Hw
>> Status
>> ---- --------------------------- ------------------ ----------- -------
>> -------
>>  2  Distributed Forwarding Card WS-F6700-DFC3B     SAL1222S11H  4.6    Ok
>>  5  Policy Feature Card 3       WS-F6K-PFC3B       SAL1012GLH0  2.2    Ok
>>  5  MSFC3 Daughterboard         WS-SUP720          SAL1012GG2H  2.4    Ok
>>
>>
>> border2::
>> border2#sh mod
>> Mod Ports Card Type                              Model              Serial
>> No.
>> --- ----- -------------------------------------- ------------------
>> -----------
>>  2    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE
>>  3    8  8 port 1000mb GBIC Enhanced QoS        WS-X6408A-GBIC
>>  4    8  8 port 1000mb GBIC Enhanced QoS        WS-X6408A-GBIC
>>  5    2  Supervisor Engine 720 (Active)         WS-SUP720-3BXL
>>
>> Mod  Sub-Module                  Model              Serial       Hw
>> Status
>> ---- --------------------------- ------------------ ----------- -------
>> -------
>>  2  Distributed Forwarding Card WS-F6700-DFC3B     SAL10489CQ0  4.4    Ok
>>  5  Policy Feature Card 3       WS-F6K-PFC3BXL     SAD111706XS  1.8    Ok
>>  5  MSFC3 Daughterboard         WS-SUP720          SAD111608DE  2.6    Ok
>>
>>
>> Border2 interface Te2/1 is connected to an Internet Provider (Using
>> XENPAK-10GB-ER)
>> Border2 interface Te2/2 is connected to Core2 interface Te2/1 (Using
>> XENPAK-10GB-LX4)
>>
>> In Core2, we have a customer who is connected via a Port-Channel
>> (interface
>> Gi 3/7 and Gi 3/8) who is usually pulling 1.2Gbps inbound of traffic from
>> the Internet.
>> This customer is having an issue where it can not pull more than 150Mbps
>> inbound. But from our existing network (2Gbps uplinks), he can pull 1.2
>> Gbps
>> of inbound no problem.
>>
>> The two networks have the same Internet Provider.
>>
>> There are no QOS enabled on both border2 or core2::
>> border2#sh mls qos
>>  QoS is disabled globally
>> border2#
>>
>> Routing Protocol: BGP on the provider peer.
>> Border2 and Core2: OSPF a simple one both have redistribute static and
>> connected
>>
>> Then we tried to move the port-channel for the customer to border2, the
>> router seems to respond very slowly to keyboard input ("due to high
>> traffic
>> of 150Mbps") but after shutting down the port-channel, the keyboard input
>> seems fine (no more sluggish). Network seems good.
>>
>> Please let me know what I did wrong. If you need additional info, please
>> let
>> me know.
>>
>> Thank you
>>
>> Regards,
>> Rudy
>> _______________________________________________
>> cisco-nsp mailing list  cisco-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>>
>
>