On Mon, 6 Dec 1999, Bilge Karabacak wrote:
> Here you can find the output of "sh interfaces switching"
Ok, just as I thought. You are process switching most of your packets on
the f0/0. I don't think every packet for NAT would need to be process
switched..........but perhaps I am wrong. You can use sh buffers to view
the header information on the process switched packets and see which ones
are becoming process switched.
Brain
>
> ---------------SHOW INTERFACES SWITCHING--------------------
> FastEthernet0/0
> Throttle count 0
> Drops RP 0 SP 0
> SPD Flushes Fast 0 SSE 0
> SPD Aggress Fast 0
> SPD Priority Inputs 0 Drops 0
>
> Protocol Path Pkts In Chars In Pkts Out Chars Out
> Other Process 9270 1271276 43202 2592120
> Cache misses 0
> Fast 0 0 0 0
> Auton/SSE 0 0 0 0
> IP Process 31582 2805762 8549 1442358
> Cache misses 0
> Fast 1210 78738 0 0
> Auton/SSE 0 0 0 0
> ARP Process 3204 192240 1085 65100
> Cache misses 0
> Fast 0 0 0 0
> Auton/SSE 0 0 0 0
>
> Interface Serial0/0 is disabled
>
> FastEthernet0/1
> Throttle count 0
> Drops RP 0 SP 0
> SPD Flushes Fast 0 SSE 0
> SPD Aggress Fast 0
> SPD Priority Inputs 0 Drops 0
>
> Protocol Path Pkts In Chars In Pkts Out Chars Out
> Other Process 65846 7862889 44130 2609371
> Cache misses 0
> Fast 0 0 0 0
> Auton/SSE 0 0 0 0
> IP Process 38088 4002553 190 13123
> Cache misses 0
> Fast 245624 42909834 1210 78738
> Auton/SSE 0 0 0 0
> ARP Process 238106 14285130 58 3480
> Cache misses 0
> Fast 0 0 0 0
> Auton/SSE 0 0 0 0
>
> Interface Serial0/1 is disabled
>
> Loopback0
> Throttle count 0
> Drops RP 0 SP 0
> SPD Flushes Fast 0 SSE 0
> SPD Aggress Fast 0
> SPD Priority Inputs 0 Drops 0
>
> Protocol Path Pkts In Chars In Pkts Out Chars Out
> No traffic sent or received on this interface.
>
> Brian wrote:
>
> > On Mon, 6 Dec 1999, Bilge Karabacak wrote:
> >
> > > I configured a Cisco 2621 router. The problem with this router is its
> > > throughput. It is ten times slower than a linux machine acting as a
> > > gateway with two ethernet interfaces. The properties of linux machine is
> > > Intel celeron 400, 64 MByte RAM. The second important point is that,
> > > the router gave this result with no access-lists. The last one to say is
> > > that,, NAT operation at this cisco 2621 degrades performance by 60%
> > > percent. This is ridicilous, if all cisco routers are like this one.
> > > May you please comment on this, after examining the configuration of the
> > > router? Is it normal? What should I do to increase performance?
> > > Below, you will find
> >
> > Interesting,
> >
> > Please show us the output of "sh interfaces switching". Also you may wish
> > to check bugs on ciscos site since NAT bugs are common in 12.0
> >
> > Brian
> >
> > >
> > > -----------------SHOW STARTUP-CONFIG------------------------
> > > !
> > > ! Last configuration change at 12:20:40 UTC Thu Nov 30 2000
> > > ! NVRAM config last updated at 13:01:17 UTC Thu Nov 30 2000
> > > !
> > > version 12.0
> > > service tcp-keepalives-in
> > > service timestamps debug datetime msec
> > > service timestamps log datetime msec
> > > service password-encryption
> > > !
> > > hostname router2
> > > !
> > > no logging buffered
> > > no logging console
> > > no logging monitor
> > > enable secret 5 ***********
> > > !
> > > !
> > > !
> > > !
> > > !
> > > memory-size iomem 15
> > > ip subnet-zero
> > > no ip source-route
> > > no ip finger
> > > ip tcp selective-ack
> > > ip tcp path-mtu-discovery
> > > ip telnet quiet
> > > !
> > > no ip bootp server
> > > ip audit notify log
> > > ip audit po max-events 100
> > > !
> > > !
> > > !
> > > !
> > > !
> > > !
> > > !
> > > !
> > > interface FastEthernet0/0
> > > ip address 192.168.1.89 255.255.255.0
> > > no ip unreachables
> > > no ip directed-broadcast
> > > ip nat inside
> > > no ip mroute-cache
> > > duplex auto
> > > speed auto
> > > no cdp enable
> > > !
> > > interface Serial0/0
> > > no ip address
> > > no ip directed-broadcast
> > > no ip mroute-cache
> > > shutdown
> > > no cdp enable
> > > !
> > > interface FastEthernet0/1
> > > ip address 193.177.77.77 255.255.255.0
> > > no ip unreachables
> > > no ip directed-broadcast
> > > ip nat outside
> > > no ip mroute-cache
> > > duplex auto
> > > speed auto
> > > no cdp enable
> > > !
> > > interface Serial0/1
> > > no ip address
> > > no ip directed-broadcast
> > > no ip mroute-cache
> > > shutdown
> > > no cdp enable
> > > !
> > > ip nat inside source list 2 interface FastEthernet0/1 overload
> > > ip classless
> > > ip route 0.0.0.0 0.0.0.0 FastEthernet0/1
> > > no ip http server
> > > !
> > > logging trap debugging
> > > logging facility local6
> > > logging source-interface FastEthernet0/0
> > > access-list 2 permit 192.168.1.0 0.0.0.255
> > > dialer-list 1 protocol ip permit
> > > dialer-list 1 protocol ipx permit
> > > no cdp run
> > > !
> > > line con 0
> > > password 7 ***************
> > > login
> > > transport input none
> > > line aux 0
> > > password 7 ****************
> > > login
> > > line vty 0 4
> > > password 7 **********************
> > > login
> > > transport input none
> > > !
> > > scheduler interval 500
> > > no scheduler allocate
> > > end
> > >
> > >
> > > --------------------SHOW VERSION-------------------
> > >
> > > Cisco Internetwork Operating System Software
> > > IOS (tm) C2600 Software (C2600-IO3S56I-M), Version 12.0(7)XK1, EARLY
> > > DEPLOYMENT
> > > RELEASE SOFTWARE (fc1)
> > > TAC:Home:SW:IOS:Specials for info
> > > Copyright (c) 1986-2000 by cisco Systems, Inc.
> > > Compiled Wed 15-Mar-00 08:53 by phanguye
> > > Image text-base: 0x80008088, data-base: 0x80EB7238
> > >
> > > ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
> > > ROM: C2600 Software (C2600-IO3S56I-M), Version 12.0(7)XK1, EARLY
> > > DEPLOYMENT RELE
> > > ASE SOFTWARE (fc1)
> > >
> > > router2 uptime is 4 days, 18 hours, 16 minutes
> > > System returned to ROM by reload at 15:57:01 UTC Fri Dec 1 2000
> > > System restarted at 15:58:42 UTC Fri Dec 1 2000
> > > System image file is "flash:aaa1321.bin"
> > > Host configuration file is "tftp://192.168.5.78/router2_acl"
> > >
> > > cisco 2621 (MPC860) processor (revision 0x102) with 41984K/7168K bytes
> > > of memory
> > > .
> > > Processor board ID JAB040906MD (3523830294)
> > > M860 processor: part number 0, mask 49
> > > Bridging software.
> > > X.25 software, Version 3.0.0.
> > > 2 FastEthernet/IEEE 802.3 interface(s)
> > > 2 Low-speed serial(sync/async) network interface(s)
> > > 32K bytes of non-volatile configuration memory.
> > > 16384K bytes of processor board System flash (Read/Write)
> > >
> > > Configuration register is 0x2102
> > >
> > >
> > > _________________________________
> > > FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > >
> >
> > -----------------------------------------------
> > Brian Feeny, CCNP+ATM, CCDP [EMAIL PROTECTED]
> > Network Administrator
> > ShreveNet Inc. (ASN 11881)
>
> _________________________________
> FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
-----------------------------------------------
Brian Feeny, CCNP+ATM, CCDP [EMAIL PROTECTED]
Network Administrator
ShreveNet Inc. (ASN 11881)
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
