Hi,
I have a question regarding GRE tunnel interface over Internet DSLs, encrypted using IPSec. We use below config:
interface Tunnel1
bandwidth 1000
ip address <ip> <mask>
no ip redirects
ip mtu 1272
ip nhrp authentication <auth_profile>
ip nhrp map <ip> <mask>
ip nhrp map multicast <ip>
ip nhrp network-id <id>
ip nhrp holdtime 300
ip nhrp nhs <ip>
ip tcp adjust-mss 1232
no ip mroute-cache
delay 1000
tunnel source <interface>
tunnel mode gre multipoint
tunnel key <key>
tunnel protection ipsec profile <profile>
All works fine, but if I perform a show int tunnel 1, the following is showed.
Tunnel1 is up, line protocol is up
Hardware is Tunnel
Internet address is <snipped ip info>
MTU 1514 bytes, BW 1000 Kbit, DLY 10000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source <snipped ip info> (<snipped interface info>), destination UNKNOWN
Tunnel protocol/transport multi-GRE/IP
Key 0x418937, sequencing disabled
Checksumming of packets disabled
Fast tunneling enabled
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
Tunnel protection via IPSec (profile <snipped>)
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: fifo
Output queue: 0/0 (size/max)
5 minute input rate 4000 bits/sec, 4 packets/sec
5 minute output rate 6000 bits/sec, 5 packets/sec
6637429 packets input, 3015447970 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
8549949 packets output, 3620144450 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Now to my question, the displayed values:
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
How exactly are these determined, as they seem to be the same for every tunnel and not depending on the bandwidth command?
How can one influence these?
What is the purpose of these values?
Does it affect traffic?
Thanks in advance for your answer(s) :-))
Leo
