Weird issue has cropped up. I have a total of 4 X Cisco 6509 switches in 2 data-centres. Multiple VLAN's exist on each switch...
However, I have a problem on 6 individual ports.....Really weird issue in that every 30 minutes without fail the ports reset themselves...
For 4 out of the suspect 6 ports, a Mac-address has been discovered on all of the ports but no corresponding IP....All of the mac addresses indicate that they are the same vendor...all begin with 001b.4f0c....
On the suspect ports as well, there is little or no traffic coming in from the affected device and what is is primarily broadcast traffic....
see interface output below
test_switch#sh int gig 1/12
GigabitEthernet1/12 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 001b.534a.3fab (bia 001b.534a.3fab)
Description: **Sys1-CTLA_Ipsi 6a-10.239.48.18**
MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
input flow-control is off, output flow-control is on
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters 19:24:44
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Vlan 601 is dedicated for the Avaya Kit alright but most are okay. I've an engineer going to site today to trace them for me as they could be going into different cards in the pbx e.g. clan card, medpro etc.,
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
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In this session you can learn more about Layer 3 multicast and the best
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