10-05-2011 03:22 AM - last edited on 11-03-2022 04:50 AM by Translator
Hi All,
I have Cisco 1921, 10 MB internet link terminated and have DMVPN tunnels to our DC.
When I observed the tunnel details, found that the Tunnel transmit bandwidth 8000 (kbps). Does this mean that the tunnel can trans/received max 8 Mbps only?
I tried to change the tunnel bandwidth but not option under the tunnel to configure.
Is there any other alternative to do this change?
Shall I upgrade the IOS inorder to get the commands available?
ROUTER#sh int Tunnel10
Tunnel10 is up, line protocol is up
Hardware is Tunnel
Internet address is 192.168.XXX.XX/24
MTU 17912 bytes, BW 20000 Kbit/sec, DLY 50000 usec,
reliability 255/255, txload 7/255, rxload 13/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source 195.81.XXX.XXX (GigabitEthernet0/0)
Tunnel Subblocks:
src-track:
Tunnel10 source tracking subblock associated with GigabitEthernet0/0
Set of tunnels with source GigabitEthernet0/0, 2 members (includes iterators), on interface <OK>
Tunnel protocol/transport multi-GRE/IP
Key 0x3E7, sequencing disabled
Checksumming of packets disabled
Tunnel TTL 255, Fast tunneling enabled
Tunnel transport MTU 1472 bytes
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
Tunnel protection via IPSec (profile "dmvpn-profile")
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 1d22h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 36
Queueing strategy: fifo
Output queue: 0/0 (size/max)
5 minute input rate 1096000 bits/sec, 333 packets/sec
5 minute output rate 561000 bits/sec, 345 packets/sec
25254924 packets input, 1534383582 bytes, 0 no buffer
Received 0 broadcasts (36494 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
26810408 packets output, 3791188121 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
ROUTER#conf t
Enter configuration commands, one per line. End with CNTL/Z.
ROUTER(config)#int Tunnel10
ROUTER(config-if)#tunnel ?
6rd set tunnel 6rd parameters
checksum enable end to end checksumming of packets
destination destination of tunnel
flow flow options
key security or selector key
mode tunnel encapsulation method
path-mtu-discovery Enable Path MTU Discovery on tunnel
protection Enable tunnel protection
raw-packet-interface physical interface for all packets entering it to be
tunneled and for all packets entering the tunnel to
exit
route-via Select subset of routes for tunnel transport
sequence-datagrams drop datagrams arriving out of order
source source of tunnel packets
tos set type of sevice byte
ttl set time to live
udlr associate tunnel with unidirectional interface
vrf set tunnel vrf membership
#sh ver
Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.1(4)M, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 24-Mar-11 13:55 by prod_rel_team
ROM: System Bootstrap, Version 15.0(1r)M6, RELEASE SOFTWARE (fc1)
ROUTER uptime is 10 weeks, 2 days, 22 hours, 20 minutes
System returned to ROM by reload at 11:51:41 UTC Sun Jul 24 2011
System image file is "flash:c1900-universalk9-mz.SPA.151-4.M.bin"
Last reload type: Normal Reload
Last reload reason: Reload Command
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
export@cisco.com.
Cisco CISCO1921/K9 (revision 1.0) with 491520K/32768K bytes of memory.
Processor board ID FHK14247486
2 Gigabit Ethernet interfaces
1 terminal line
1 Virtual Private Network (VPN) Module
DRAM configuration is 64 bits wide with parity disabled.
255K bytes of non-volatile configuration memory.
248816K bytes of USB Flash usbflash0 (Read/Write)
License Info:
License UDI:
-------------------------------------------------
Device# PID SN
-------------------------------------------------
*0 CISCO1921/K9 FHK14247486
Technology Package License Information for Module:'c1900'
----------------------------------------------------------------
Technology Technology-package Technology-package
Current Type Next reboot
-----------------------------------------------------------------
ipbase ipbasek9 Permanent ipbasek9
security securityk9 Permanent securityk9
data None None None
Configuration register is 0x2102
Thanks in advance.
Jopeti.
Solved! Go to Solution.
10-05-2011 03:40 AM - last edited on 11-03-2022 11:47 PM by Translator
The tunnel Bandwidth of 8Mbps is used by routing protocols to calculate the metrics and for QOS parameters. So this will not affect the actual data traffic flow . It is recommended to set the bandwidth to be equal to that of the physical link using the
bandwidth
command under the tunnel interface.
10-05-2011 04:07 AM - last edited on 11-03-2022 11:48 PM by Translator
Hi Jopeti,
As said above, the bandwidth tranceive what you are seeing in tunnel interface details is not effect to main data flow.
The actual bandwidth of physical link will be used for the main data flow.
So in your case I would suggest you to sent the bandwidth under your tunnel interface as like below as you have 10 Mbps main physical link.
interface Tunnel10
bandwidth 10000
Please rate the helpful posts.
Regards,
Naidu.
10-05-2011 04:23 AM
Exactly, both posts above agree with my response
10-05-2011 03:31 AM - last edited on 11-03-2022 05:25 AM by Translator
The actual bandwidth is depending on the physical interface of the tunnel
Try to use the command
bandwidth
under the tunnel interface which useful for qos polices config only to be referenced
Hope this help
10-05-2011 03:40 AM - last edited on 11-03-2022 11:47 PM by Translator
The tunnel Bandwidth of 8Mbps is used by routing protocols to calculate the metrics and for QOS parameters. So this will not affect the actual data traffic flow . It is recommended to set the bandwidth to be equal to that of the physical link using the
bandwidth
command under the tunnel interface.
10-05-2011 04:07 AM - last edited on 11-03-2022 11:48 PM by Translator
Hi Jopeti,
As said above, the bandwidth tranceive what you are seeing in tunnel interface details is not effect to main data flow.
The actual bandwidth of physical link will be used for the main data flow.
So in your case I would suggest you to sent the bandwidth under your tunnel interface as like below as you have 10 Mbps main physical link.
interface Tunnel10
bandwidth 10000
Please rate the helpful posts.
Regards,
Naidu.
10-05-2011 04:23 AM
Exactly, both posts above agree with my response
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