Configure bandwidth on Interface Tunnel

[kenneth-goh]

Hi, I understand that the bandwidth command is only there to communicate the speed of the interface to higher level protocols. Also as shown below is the default bandwidth that the Tunnel interface will received is 8000 kbps?  How do I change this value? Thanks in advanced!

R1#show int tun2
Tunnel2 is up, line protocol is up
  Hardware is Tunnel
  Internet address is 19.105.251.70/30
  MTU 17886 bytes, BW 9 Kbit/sec, DLY 6000000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation TUNNEL, loopback not set
  Keepalive not set
  Tunnel source 19.88.3.2 (GigabitEthernet0/0), destination 192.24.91.194
   Tunnel Subblocks:
      src-track:
         Tunnel2 source tracking subblock associated with GigabitEthernet0/0
          Set of tunnels with source GigabitEthernet0/0, 2 members (includes ite
rators), on interface <OK>
  Tunnel protocol/transport IPSEC/IP
  Tunnel TTL 255
  Tunnel transport MTU 1446 bytes
  Tunnel transmit bandwidth 8000 (kbps)
  Tunnel receive bandwidth 8000 (kbps)
  Tunnel protection via IPSec (profile "RUBGY-PROFILE")
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 1w3d
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 3
  Queueing strategy: fifo
  Output queue: 0/0 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     483808 packets input, 23552321 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     541964 packets output, 29089568 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out

[Joseph W. Doherty]

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Posting

Bandwidth statement, on tunnel interface.

[kenneth-goh]

The bandwidth command is only there to communicate the speed of the interface to higher level protocols. Most of the time, a routing protocol needs to know the speed of the interface so it can choose the best route.

http://www.techrepublic.com/article/clarifying-the-cisco-ios-bandwidth-command/

Is 8000 kbps the actual bandwidth for the on the Tunnel interface? How can I change it? As I use the command bandwidth 2000 it only changes  the value for BW 2000 kbit

7206(config-if)#bandwidth 2000
7206(config-if)#do sh int tun7
Tunnel7 is up, line protocol is down
  Hardware is Tunnel
  Internet address is 12.16.91.2/24
  MTU 1514 bytes, BW 2000 Kbit, DLY 500000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation TUNNEL, loopback not set
  Keepalive not set
  Tunnel source 0.0.0.0 (FastEthernet0/0.8), destination 101.101.250.92
  Tunnel protocol/transport GRE/IP
    Key disabled, sequencing disabled
    Checksumming of packets disabled
  Tunnel TTL 255
  Fast tunneling enabled
  Tunnel transmit bandwidth 8000 (kbps)
  Tunnel receive bandwidth 8000 (kbps)

[Joseph W. Doherty]

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

Ah, you might be looking at a software defect for your software version.

Tunnel bandwidth is not actually impacted by the bandwidth statement.

8 Kbps is a tunnel default, and I recall (?) if should be also reset with the bandwidth statement.

Later today, if I remember, I'll look at some of my production tunnels, and post results.

[Joseph W. Doherty]

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

Ah, I get the same results.

Also try tunnel bandwidth receive|transmit on the tunnel interface.

[kenneth-goh]

Hi Joseph, where can I find the option for tunnel bandwidth receive|transmit  

7206(config)#int tun 7
7206(config-if)#tunnel ?
  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
  sequence-datagrams  drop datagrams arriving out of order
  source              source of tunnel packets
  tos                 set type of service byte
  ttl                 set time to live
  udlr                associate tunnel with unidirectional interface
  vrf                 set tunnel vrf membership

For Gi or Fa interfaces we can change the line speed using the “speed” command (10/100/100), I am looking at similar changes for the Tunnel interface, from what I see the speed of the tunnel interface is 8000 kbps?

Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)

[Joseph W. Doherty · Accepted solution]

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

On a 7206VXR (NPE-G1) running 12.4(24)T3 (tunnel interface):

rtr(config-if)#tunnel ?
  bandwidth           Set tunnel bandwidth informational parameter
  checksum            enable end to end checksumming of packets
  destination         destination of tunnel
  flow                flow options
  key                 security or selector key
  mode                tunnel encapsulation method
  mpls                MPLS tunnel commands
  path-mtu-discovery  Enable Path MTU Discovery on tunnel
  protection          Enable tunnel protection
  rbscp               Set tunnel RBSCP parameters
  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 service byte
  ttl                 set time to live
  udlr                associate tunnel with unidirectional interface
  vrf                 set tunnel vrf membership