[c-nsp] Best practice - Core vs Access Router

[Andy B.]

I think I am not software switching:

CPU utilization for five seconds: 19%/5%; one minute: 46%; five minutes: 42%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
   6   426848940  21297160      20042  2.71%  1.01%  1.23%   0 Check heaps
 123   821446324 874103795        939  2.31%  2.42%  2.40%   0 IP Input
 281    84726288 609026650        139  0.55%  0.25%  0.22%   0 Port manager per
 169    98404740   5822749      16900  0.31%  0.31%  0.31%   0 Adj Manager
   9    92306248 220930403        417  0.31%  0.43%  0.40%   0 ARP Input
 180    64244512  51116025       1256  0.23%  0.26%  0.25%   0 CEF process
 320    18645168 124211249        150  0.15%  1.26%  1.10%   0 BGP I/O
 307    28557284 371501297         76  0.07%  0.10%  0.06%   0 MLD
 167    27023688 387372814         69  0.07%  0.12%  0.09%   0 IPv6 Input
 286    91380880  67881032       1346  0.07%  4.58%  3.92%   0 BGP Router
 322       24944     12735       1958  0.07%  0.09%  0.02%   1 SSH Process
...


#show platform hardware capacity pfc
L2 Forwarding Resources
           MAC Table usage:   Module  Collisions  Total       Used       %Used
                              5                0  65536       3383          5%

             VPN CAM usage:                       Total       Used       %Used
                                                    512          0          0%
L3 Forwarding Resources
             FIB TCAM usage:                     Total        Used       %Used
                  72 bits (IPv4, MPLS, EoM)     524288      315002         60%
                 144 bits (IP mcast, IPv6)      262144        2904          1%

                     detail:      Protocol                    Used       %Used
                                  IPv4                      315002         60%
                                  MPLS                           0          0%
                                  EoM                            0          0%

                                  IPv6                        2842          1%
                                  IPv4 mcast                     3          1%
                                  IPv6 mcast                    59          1%

            Adjacency usage:                     Total        Used       %Used
                                               1048576        5046          1%

     Forwarding engine load:
                     Module       pps   peak-pps                     peak-time
                     5        4443376   10849623  12:44:28 CEST Mon Dec 21 2009

Netflow Resources
          TCAM utilization:       Module       Created      Failed       %Used
                                  5             262020           0        100%
          ICAM utilization:       Module       Created      Failed       %Used
                                  5                  4     5228242          3%

                 Flowmasks:   Mask#   Type        Features
                        IPv4:     0   reserved    none
                        IPv4:     1   Intf FulFM_GUARDIAN
                        IPv4:     2   unused      none
                        IPv4:     3   reserved    none

                        IPv6:     0   reserved    none
                        IPv6:     1   Intf FulFM_IPV6_GUARDIAN
                        IPv6:     2   unused      none
                        IPv6:     3   reserved    none

CPU Rate Limiters Resources
             Rate limiters:       Total         Used      Reserved       %Used
                    Layer 3           9            4             1         44%
                    Layer 2           4            2             2         50%

ACL/QoS TCAM Resources
  Key: ACLent - ACL TCAM entries, ACLmsk - ACL TCAM masks, AND - ANDOR,
       QoSent - QoS TCAM entries, QOSmsk - QoS TCAM masks, OR - ORAND,
       Lbl-in - ingress label, Lbl-eg - egress label, LOUsrc - LOU source,
       LOUdst - LOU destination, ADJ - ACL adjacency

  Module ACLent ACLmsk QoSent QoSmsk Lbl-in Lbl-eg LOUsrc LOUdst  AND  OR  ADJ
  5          1%     2%     1%     1%     1%     1%     0%     0%   0%  0%   1%

I do see input drops - what does that mean?

Andy

On Tue, Feb 9, 2010 at 1:44 PM, Saku Ytti <saku at ytti.fi> wrote:
> On (2010-02-09 13:21 +0100), Andy B. wrote:
>
>> CPU load is fairly normal at 20-30%
>
> What is more important if this is process or interrupt. 'show proc cpu' you
> have x/y, y is interrupt and should be 0, if not, you are software switching
> something due to misconfiguration or software defect.
>
>> No congestion. Most links are under 50%.
>> I have no Control Plane Policies in place, but I have already been
>> advised to do so - this might help, right?
>
>> Redesigning the network and shifting the busy (uncongested!) VLAN to
>> another router seemed like the only choice we have left, unless this
>> CPP can help?
>
> Do you see any input drops in 'sh int | i Input|^[A-Z]'
>
> Are you within bounds of PFC resources?
> show platform hardware capacity pfc
>
> --
>  ++ytti
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