Походу пинги стали 1000-2000 ms  не факт, что инет медленнее стал, но возможно, не знаю как однозначно проверить

Kar-Inet-Router#show processes cpu
CPU utilization for five seconds: 78%/57%; one minute: 67%; five minutes: 67%

Kar-Inet-Router#sh processes cpu sorted 1min
CPU utilization for five seconds: 68%/51%; one minute: 69%; five minutes: 68%
PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  43   378974584  65769765       5762  9.15%  7.27%  6.02%   0 IP Input
   4    36740904   1763999      20828  5.40%  0.00%  0.67%   0 Check heaps
110    59916776 392752091        152  0.90%  0.99%  0.99%   0 traffic_shape
  46       33696       544      61941  0.00%  0.46%  0.29%   6 Virtual Exec
  29    16640156   6528924       2548  0.08%  0.24%  0.22%   0 Per-Second Jobs
  70    17291208    131901     131097  0.00%  0.20%  0.26%   0 IP Cache Ager
  13    13271372  15166401        875  0.08%  0.18%  0.19%   0 ARP Input
  36     4349684  14238368        305  0.08%  0.04%  0.00%   0 Net Input
  38     5466644    114790      47622  0.00%  0.03%  0.05%   0 Per-minute Jobs
  62     1661176    114005      14571  0.00%  0.03%  0.00%   0 IP Background
  50     1041784  25251168         41  0.08%  0.02%  0.00%   0 SSS Feature Time
  61     2407104   4406650        546  0.08%  0.02%  0.00%   0 DHCPD Receive
   2      960608   1296858        740  0.00%  0.01%  0.00%   0 Load Meter
   3      612512   2246782        272  0.00%  0.01%  0.00%   0 OSPF-55 Hello
  25      359572   1398119        257  0.00%  0.00%  0.00%   0 Net Background
  37      540904   1301157        415  0.00%  0.00%  0.00%   0 Compute load avg
121      668192   6409863        104  0.00%  0.00%  0.00%   0 OSPF-55 Router
119      406304   6586483         61  0.00%  0.00%  0.00%   0 NTP
   5       77704     39407       1971  0.00%  0.00%  0.00%   0 Pool Manager
  15       56028    648098         86  0.00%  0.00%  0.00%   0 HC Counter Timer
  21      211428   6482891         32  0.00%  0.00%  0.00%   0 GraphIt
  20           0         1          0  0.00%  0.00%  0.00%   0 SERIAL A'detect
  23           0         2          0  0.00%  0.00%  0.00%   0 XML Proxy Client
  22           0         2          0  0.00%  0.00%  0.00%   0 Dialer event
  24           0         1          0  0.00%  0.00%  0.00%   0 Critical Bkgnd
  26           0         3          0  0.00%  0.00%  0.00%   0 IDB Work
  27        1092     11845         92  0.00%  0.00%  0.00%   0 Logger
  19           0         2          0  0.00%  0.00%  0.00%   0 SMART
  17           0         2          0  0.00%  0.00%  0.00%   0 ATM Idle Timer

show ver
Cisco IOS Software, C1700 Software (C1700-SY7-M), Version 12.4(19), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Fri 29-Feb-08 17:30 by prod_rel_team

ROM: System Bootstrap, Version 12.2(7r)XM2, RELEASE SOFTWARE (fc1)

Kar-Inet-Router uptime is 3 minutes
System returned to ROM by reload at 11:34:23 UTC Tue Nov 30 2010
System image file is "flash:c1700-sy7-mz.124-19.bin"

Cisco 1721 (MPC860P) processor (revision 0x300) with 59392K/6144K bytes of memory.
Processor board ID FOC07460UKP (3331488957), with hardware revision 0000
MPC860P processor: part number 5, mask 2
1 Ethernet interface
1 FastEthernet interface
2 Low-speed serial(sync/async) interfaces
32K bytes of NVRAM.
32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x3922

Циска раздаёт инет, тупо виланами, роутингом и шейпит ИП или VLAN. Nat нема....
Какую диагностику тыкать надо? Ребутнул вроде пока полегчало, думаю не на долго :(.
Нагрузка составляла, к ней от неё по 4 мегабита, т.е. заходило и раздавалось 4 мегабита.