Hi
I believe that cisco 887VA 15.154-3.M4 has a bug related to throttle packets.
Below the scenario:
interface Vlan1
description +--IP_MGMT+TRAFFIC--+
ip address 10.0.0.1 255.255.255.0
ip nbar protocol-discovery
ip nat inside
ip virtual-reassembly in
ipv6 address NODE-PD ::1/64
ipv6 enable
ipv6 mtu 1500
ipv6 nd other-config-flag
ipv6 tcp adjust-mss 1440
ipv6 dhcp server DHCP6
ntp broadcast client
ntp multicast client
ipv6 ospf 1 area 0
When the interface receive throttle packets and get the threshold of the hold input queue, instead to drop the packets as described in cisco documentation, it gets stuck and is not possible do send/receive packets. Only way to restore the interface is via reboot.
(http://www.cisco.com/c/en/us/support/docs/routers/10000-series-routers/6343-queue-drops.html)
As workaround I have implemented the input hold queue at 2400000 but I'm wondering what I can do if the interface gets that threshold.
887VA# show interfaces summary
*: interface is up
IHQ: pkts in input hold queue IQD: pkts dropped from input queue
OHQ: pkts in output hold queue OQD: pkts dropped from output queue
RXBS: rx rate (bits/sec) RXPS: rx rate (pkts/sec)
TXBS: tx rate (bits/sec) TXPS: tx rate (pkts/sec)
TRTL: throttle count
Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-----------------------------------------------------------------------------------------------------------------
* ATM0 0 0 0 0 261000 57 46000 50 0
* Dialer1 0 0 0 76 266000 64 66000 70 0
Ethernet0 0 0 0 0 0 0 0 0 0
* FastEthernet0 0 0 0 0 58000 56 270000 56 0
FastEthernet1 0 0 0 0 0 0 0 0 0
FastEthernet2 0 0 0 0 0 0 0 0 0
FastEthernet3 0 0 0 0 0 0 0 0 0
NVI0 0 0 0 0 0 0 0 0 0
* Virtual-Access1 0 0 0 0 0 0 0 0 0
* Virtual-Access2 0 0 0 0 261000 57 46000 50 0
* Vlan1 76 0 0 0 41000 33 190000 34 1223
Anyone has any suggestion? Is it a bug or a misconfiguration?
Thankyou!
