HPE 3100 Configuration Manual page 226

# Add port Ethernet 1/0/3 to service loopback group 1, and disable STP, NDP, and LLDP on the
port.
[SwitchB] interface Ethernet 1/0/3
[SwitchB-Ethernet1/0/3] undo stp enable
[SwitchB-Ethernet1/0/3] undo ndp enable
[SwitchB-Ethernet1/0/3] undo lldp enable
[SwitchB-Ethernet1/0/3] port service-loopback group 1
[SwitchB-Ethernet1/0/3] quit
# Create a tunnel interface Tunnel1.
[SwitchB] interface tunnel 1
# Configure an IPv4 address for tunnel interface Tunnel1.
[SwitchB-Tunnel1] ip address 10.1.2.2 255.255.255.0
# Configure the tunnel encapsulation mode as GRE over IPv4.
[SwitchB-Tunnel1] tunnel-protocol gre
# Configure the source address for tunnel interface Tunnel1 (IP address of the VLAN interface
to which Ethernet 1/0/2 belongs).
[SwitchB-Tunnel1] source vlan-interface 101
# Configure the destination address for tunnel interface Tunnel1 (IP address of the VLAN
interface to which Ethernet 1/0/2 of Switch A belongs).
[SwitchB-Tunnel1] destination 1.1.1.1
# Apply service loopback group 1 to the tunnel in tunnel interface view.
[SwitchB-Tunnel1] service-loopback-group 1
[SwitchB-Tunnel1] quit
# Configure a static route from Switch B through tunnel interface Tunnel1 to Group 1.
[SwitchB] ip route-static 10.1.1.0 255.255.255.0 Tunnel 1
3. Verify the configuration:
# View the tunnel interface status on Switch A and Switch B.
[SwitchA] display interface tunnel 1
Tunnel1 current state: UP
Line protocol current state: UP
Description: Tunnel1 Interface
The Maximum Transmit Unit is 1476
Internet Address is 10.1.2.1/24 Primary
Encapsulation is TUNNEL, service-loopback-group ID is 1.
Tunnel source 1.1.1.1, destination 2.2.2.2
Tunnel bandwidth 64 (kbps)
Tunnel protocol/transport GRE/IP
GRE key disabled
Checksumming of GRE packets disabled
Output queue : (Urgent queuing : Size/Length/Discards)
Output queue : (Protocol queuing : Size/Length/Discards)
Output queue : (FIFO queuing : Size/Length/Discards)
Last clearing of counters:
Last 300 seconds input:
Last 300 seconds output:
10 packets input,
0 input error
10 packets output,
Never
0 bytes/sec, 0 packets/sec
0 bytes/sec, 0 packets/sec
840 bytes
840 bytes
216
0/100/0
0/500/0
0/75/0