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We are using Cisco 8821 (sip8821.11-0-3SR6-15) telephones on a test environment, 5508 wireless lan controller, firmware 8.2.166.0.
When I switch the Qos profile from 'Silver (best effort)' to 'Platinum (voice)', the 8821 phone will not register any...
A cliënt has two datacenters which are connected with two DCI (DataCenter Interconnect) links.
In the past they would use a 3750 stack on both sides with a port-channel for the DCI. Life was easy then.
In the new datacenter they have 4 nexus 5600's ...
For our new datacenter network I have 4 Nexus 5672UP's in two datacenters. Between the datacenters is a redundant vPc with 2x10Gb fibers. I've configured two VPC domains, one for each datacenter. I have read that HSRP within a VPC domain is active/ac...
Hi,This year Intel released a new NIC, the intel i217-LM. These NICs with a windows 7 image will cause an ipv6 broadcast storm if they go to sleep mode. In wireshark you will see something like "HBH ICMP6, multicast listener reportmax resp delay"; a...
Hi,
In the end we have the following changes:
- Set all telephones to sip8821.11-0-3SR6 firmware.
- Upgraded the wlc (8510) to 8.2.166.
- Configured SIP profile for 8821 in callmanager.
- Set Qos profiles for platinum to 802.1p=5.
After the wlc fir...
Hi Freerk,
Long time no see
A-MSDU TX is already disabled:
(WLC01) >show 802.11a
A-MSDU Tx:
Priority 0............................... Disabled
Priority 1............................... Disabled
Priority 2..................
Thanks for the update with explenation, this could be the cause why the 8821 roam so badly in our production environment. I also found out why it was set to 802.1p="6":
Note: In versions before Version 7.5, it was recommended to set the .1p tag to ...
I have tried "show ipv6 neigbors", it doesn't give any result on the 6500s or 3750s stacks I have tried. Do you need ipv6 commands/features enabled on the switches to get result?
