[c-nsp] Cisco 2811 performance issue - dual(new) isp
Jmail Clist
jmlist80 at gmail.com
Mon Dec 19 22:42:26 EST 2011
I have attached another log called "latest_2811_logs". it contains the "sh
ip traffic, sh int switching and a "show proc cpu sorted 1min" output
immediately after doing a test on speedguide.net through the new isp2
connection. I see some throttle drops but not much more. I'm still puzzled
at the poor performance. I put the interface back to auto as well and teh
results are the same. Any ideas?
On Mon, Dec 19, 2011 at 9:03 PM, Christopher J. Wargaski
<wargo1 at gmail.com>wrote:
> According to
> http://www.cisco.com/web/partners/downloads/765/tools/quickreference/routerperformance.pdf,
> the router can handle up to 16.44 Mbps of fast / CEF switching. I was not
> able to see your attachments in the digest nor in the archive. Do you have
> CEF enabled?
>
> cjw
>
>
> Date: Mon, 19 Dec 2011 10:57:11 -0600
>> From: Jmail Clist <jmlist80 at gmail.com>
>>
>> To: cisco-nsp at puck.nether.net
>> Subject: [c-nsp] Cisco 2811 performance issue - dual(new) isp
>> Message-ID:
>> <CAO8NJwLyKmQj8jUJTYg2_82fyxyyQLRuCOraaeH3BG9ONPr8=
>> Q at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>>
>> Hello,
>>
>> I have an issue that is really causing me grief. I recentely inherited a
>> small network. There is an existing 1.5mbps Internet connection (fa0/0)
>> (includes MPLS as well/same provider). We added a new ISP that allows for
>> 50mb down/5mb up. I added the new ISP to fa0/1 and modified the NAT
>> overload statements accordingly. I alo changed the default route to ONLY
>> use the new, faster ISP connection. Using speedguide.net, I am only able
>> to
>> get 6 to 10mb down, most of the time. if I plug a laptop into the cable
>> modem then I get 37 to 50mb down. Any idea why the 2811 is so slow? How
>> much download speed can I expect to get? Any assisstance would be very
>> much
>> appreciated.
>>
>> I have attached the config and various show outputs (nat, sh ver, memory,
>> etc.).
>>
>> Thank you,
>>
>
-------------- next part --------------
rtr2811#show proc cpu sorted 1min
CPU utilization for five seconds: 26%/17%; one minute: 13%; five minutes: 13%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
80 95570780 257773304 370 1.83% 1.75% 1.76% 0 IGMP Snooping Re
118 83345888 278039819 299 1.51% 1.59% 1.67% 0 IP Input
19 8380332 26051685 321 2.31% 1.33% 1.34% 0 ARP Input
182 382324 1277585313 0 1.35% 1.14% 1.12% 0 HQF Shaper Backg
92 18735164 59773255 313 0.63% 0.51% 0.50% 0 ILPM
125 10440 8415 1240 0.00% 0.45% 0.73% 514 SSH Process
3 2156048 19855473 108 0.31% 0.31% 0.31% 0 Skinny Msg Serve
314 166160 160658064 1 0.31% 0.31% 0.31% 0 PPP manager
5 10986872 783696 14019 0.00% 0.21% 0.18% 0 Check heaps
315 86412 160658064 0 0.15% 0.14% 0.15% 0 PPP Events
91 6677076 5139100 1299 0.15% 0.12% 0.13% 0 tCOUNTER
--------------------
rtr2811#sh ip traffic
IP statistics:
Rcvd: 5677 total, 231 local destination
0 format errors, 0 checksum errors, 7 bad hop count
0 unknown protocol, 5358 not a gateway
0 security failures, 0 bad options, 0 with options
Opts: 0 end, 0 nop, 0 basic security, 0 loose source route
0 timestamp, 0 extended security, 0 record route
0 stream ID, 0 strict source route, 0 alert, 0 cipso, 0 ump
0 other
Frags: 0 reassembled, 0 timeouts, 0 couldn't reassemble
0 fragmented, 0 fragments, 0 couldn't fragment
Bcast: 33 received, 0 sent
Mcast: 0 received, 21 sent
Sent: 225 generated, 11351 forwarded
Drop: 3 encapsulation failed, 0 unresolved, 0 no adjacency
0 no route, 0 unicast RPF, 0 forced drop
0 options denied
Drop: 0 packets with source IP address zero
Drop: 0 packets with internal loop back IP address
0 physical broadcast
ICMP statistics:
Rcvd: 0 format errors, 0 checksum errors, 0 redirects, 0 unreachable
60 echo, 0 echo reply, 0 mask requests, 0 mask replies, 0 quench
0 parameter, 0 timestamp, 0 timestamp replies, 0 info request, 0 other
0 irdp solicitations, 0 irdp advertisements
0 time exceeded, 0 info replies
Sent: 32 redirects, 0 unreachable, 0 echo, 61 echo reply
0 mask requests, 0 mask replies, 0 quench, 0 timestamp, 0 timestamp replies
0 info reply, 0 time exceeded, 0 parameter problem
0 irdp solicitations, 0 irdp advertisements
UDP statistics:
Rcvd: 40 total, 0 checksum errors, 34 no port
Sent: 23 total, 0 forwarded broadcasts
TCP statistics:
Rcvd: 135 total, 0 checksum errors, 0 no port
Sent: 116 total
BGP statistics:
Rcvd: 0 total, 0 opens, 0 notifications, 0 updates
0 keepalives, 0 route-refresh, 0 unrecognized
Sent: 0 total, 0 opens, 0 notifications, 0 updates
0 keepalives, 0 route-refresh
IP-EIGRP statistics:
Rcvd: 0 total
Sent: 0 total
PIMv2 statistics: Sent/Received
Total: 0/0, 0 checksum errors, 0 format errors
Registers: 0/0 (0 non-rp, 0 non-sm-group), Register Stops: 0/0, Hellos: 0/0
Join/Prunes: 0/0, Asserts: 0/0, grafts: 0/0
Bootstraps: 0/0, Candidate_RP_Advertisements: 0/0
Queue drops: 0
State-Refresh: 0/0
IGMP statistics: Sent/Received
Total: 0/0, Format errors: 0/0, Checksum errors: 0/0
Host Queries: 0/0, Host Reports: 0/0, Host Leaves: 0/0
DVMRP: 0/0, PIM: 0/0
Queue drops: 0
OSPF statistics:
Rcvd: 0 total, 0 checksum errors
0 hello, 0 database desc, 0 link state req
0 link state updates, 0 link state acks
Sent: 0 total
0 hello, 0 database desc, 0 link state req
0 link state updates, 0 link state acks
ARP statistics:
Rcvd: 2916 requests, 0 replies, 0 reverse, 0 other
Sent: 2 requests, 5 replies (0 proxy), 0 reverse
Drop due to input queue full: 0
rtr2811#
------------------
FastEthernet0/1 is up, line protocol is up
Hardware is MV96340 Ethernet, address is 0015.f956.d549 (bia 0015.f956.d549)
Internet address is 200.200.200.200/24
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:02, output hang never
Last clearing of "show interface" counters 00:04:13
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 115000 bits/sec, 64 packets/sec
5 minute output rate 18000 bits/sec, 1 packets/sec
24064 packets input, 9171019 bytes
Received 17645 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
4516 packets output, 2399483 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
------------------------
sh int switching
FastEthernet0/1
Throttle count 10
Drops RP 10 SP 0
SPD Flushes Fast 0 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 15397736 Drops 0
Protocol IP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 49490 16769897 30321 3863531
Cache misses 0 - - -
Fast 249838 281487351 229388 101233546
Auton/SSE 0 0 0 0
Protocol DEC MOP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 8548 658196
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol ARP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 15397767 923866020 919 55140
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol CDP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 4675 1907390
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol Other
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 514555 30873300
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
NOTE: all counts are cumulative and reset only after a reload.
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