here is the interface:
r1#
r1#
r1#show inter tun1 full
r1#show inter tun1 full
tunnel1 is up (since 00:00:02, 1 changes)
 description:
 type is udpgre, hwaddr=none, mtu=1400, bw=8000kbps, vrf=v1
 ip4 address=2.2.2.1/24, netmask=255.255.255.0, ifcid=10012
 ip6 address=4321::1/16, netmask=ffff::, ifcid=10012
 received 27 packets (2686 bytes) dropped 0 packets (0 bytes)
 transmitted 28 packets (2780 bytes) promisc=false
 |~~~~~~~|~~~~~~|~~~~~~~~~|~~~~~~|~~~~~~|~~~~~~~~~|~~~~~~|
 | time  | send | receive | drop | send | receive | drop |
 |-------|------|---------|------|------|---------|------|
 | 1sec  | 376  | 376     | 0    | 4    | 4       | 0    |
 | 1min  | 0    | 0       | 0    | 0    | 0       | 0    |
 | 1hour | 0    | 0       | 0    | 0    | 0       | 0    |
 |_______|______|_________|______|______|_________|______|
 |~~~~~~~~|~~~~~~~|~~~~~~~~~|~~~~~~|~~~~~~|~~~~~~|
 | type   | value | handler | tx   | rx   | drop |
 |--------|-------|---------|------|------|------|
 | ethtyp | 0800  | ip4     | 1410 | 1316 | 0    |
 | ethtyp | 86dd  | ip6     | 1370 | 1370 | 0    |
 |________|_______|_________|______|______|______|
        6016|
        5414|#
        4812|#
        4211|##
        3609|##
        3008|##
        2406|##
        1804|##
        1203|##
         601|##
           0|##
         bps|0---------10--------20--------30--------40--------50-------- seconds
           8|
           7|#
           6|##
           5|##
           4|##
           4|##
           3|##
           2|##
           1|##
           0|##
           0|##
         pps|0---------10--------20--------30--------40--------50-------- seconds
r1#
r1#