Load on GRE tunnel interface.
R1#sh run int tu 0
Current configuration : 216 bytes
ip address 220.127.116.11 255.255.255.0
tunnel source FastEthernet0/0
tunnel destination 18.104.22.168
tunnel bandwidth transmit 4000
tunnel bandwidth receive 4000
R1#sh int tu0
Tunnel0 is up, line protocol is up
Hardware is Tunnel
Internet address is 22.214.171.124/24
MTU 1514 bytes, BW 4000 Kbit/sec, DLY 500000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Can you please tell me based on what value are the tx and rx load of a GRE tunnel is calculated. Is it the interface bandwidth or the receive and transmit BW.