09-05-2002 09:19 PM - edited 03-02-2019 01:10 AM
Our two offices in two different cities, they are connected to eachother through internet bandwidth. At both the places, each office cisco router is connected with their near by ISP. Now we creat a GRE Tunnel from ethernet to ethernet for all data transfer between our offices internal network. here is my configuration at one side, the same is at other side.
GEO-LAHORE#show inter ser 0/0
Serial0/0 is up, line protocol is up
Hardware is PowerQUICC Serial
Description: 256k radio link->COMSATS LHR
Internet address is 210.56.31.21/30
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 6/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/41/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 41000 bits/sec, 3 packets/sec
5 minute output rate 5000 bits/sec, 5 packets/sec
177019 packets input, 137075922 bytes, 0 no buffer
Received 6483 broadcasts, 0 runts, 0 giants, 0 throttles
1 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 0 abort
171449 packets output, 19617553 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
GEO-LAHORE#sho inter tunnel 1
Tunnel1 is up, line protocol is up
Hardware is Tunnel
Description: 210.56.0.133
Internet address is 10.254.2.2/16
MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
reliability 255/255, txload 28/255, rxload 85/255
Encapsulation TUNNEL, loopback not set
Keepalive set (10 sec)
Tunnel source 210.56.20.137 (FastEthernet0/0), destination 210.56.3.33
Tunnel protocol/transport GRE/IP, key disabled, sequencing disabled
Tunnel TTL 255
Checksumming of packets disabled, fast tunneling enabled
Last input 00:00:02, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/0, 32 drops; input queue 0/75, 0 drops
5 minute input rate 3000 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
20303 packets input, 7731177 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
23444 packets output, 3065630 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
GEO-LAHORE#
I am using EIGRP as routing protocol.
I have 256 kbps bandwith at each site. While browsing internet I get throughput 20 to 25 KBites, but when I transfer files suing ftp at our internal network, browse some our internal web site that uses tunnel offcource, the throughput is only 2 to 4 KBites. Both the tarffics, internet and intenal are routed through internet 256 Kbps bandwith but why I am getting different throughput. How can I improve the throughput of my tunnel to 20 to 25 KBites like normal normal internet browsing.
Kindly Help me out.
09-07-2002 12:57 AM
You have slow throughput primarily due to fragmentation issues. You will get some of your queries answered in below URL and how to improve performance on GRE tunnel
http://www.cisco.com/warp/public/105/56.html
HTH
R/Yusuf
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