IOS Tunnel interface. Size of the NEGATIVE queue?

When I do a 'show int' on my tunnel interface, I see a NEGATIVE queue size. Is it normal or I see a bug in the IOS?

Router #sho int tunnel1

Tunnel1 is up, line protocol is up

Material is Tunnel

The Internet address is 172.16.14.2/30

MTU 1514 bytes, BW 600 Kbit, DLY 500000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation TUNNEL, loopback not set

KeepAlive not set

Source xxx.xx.xxx.xx (FastEthernet4), destination yyy.yyy.yy.yy tunnel

Tunnel protocol / transport GRE/IP, off key, off sequencing

TTL 255 tunnel

Disabled packages, quick tunneling active parity check

Tunnel of transmission bandwidth 8000 (Kbps)

Tunnel to receive 8000 (Kbps) bandwidth

Last entry of 00:00:00, 00:00:00 exit, exit hang never

Final cleaning of "show interface" counters 00:15:14

Queue entry :-542544/75/0/0 (size/max/drops/dumps); Total output drops: 0

Strategy of queues: fifo (pre-ranking QOS)

Output queue: 0/0 (size/max)

5 minute input rate 0 bps, 0 packets/s

5 minute output rate 0 bps, 0 packets/s

packages of 1499, 148506 bytes, 0 no buffer entry

Received 0 broadcasts, 0 Runts, 0 Giants 0 shifters

errors entry 0, 0 CRC, overgrown plot of 0, 0, 0 ignored, 0 abort

My config tunnel isn't something special...

Tunnel1 interface

bandwidth 600

IP 172.16.14.2 255.255.255.252

IP 1400 MTU

IP pim sparse - dense mode

QoS before filing

source of tunnel FastEthernet4

destination yyy.yyy.yy.yyy tunnel

Looks like a software defect. The closest I could find is Bug ID CSCed86842.

http://www.Cisco.com/cgi-bin/support/Bugtool/onebug.pl?BugID=CSCed86842&SUBM

I hope it helps.

Kind regards

Arul

Tags: Cisco Security

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