Switching

We saw logs like this:OSPF: warning: DD packet from <>: Options mismatch (13)%OSPF-4-OSPF_ADJACENCY_TEARDOWN: NGB <> , interface <> adjacency dropped: DD packet mismatch, state was: FULLinvalid DD packet from <>: Master flag mismatch (14)OSPF-4-OSPF_...

Hi allOn a 3560If I enable an interface for qos, trust the dscp, map it to queue set 2 and enable the priority queuedoes the interface have 2 queues on it, queue 2 and also the priority queue ?is the priority queue seperate or is it queue set 1 ?chee...

Team,Can any one tell me EIGRP will take lower Metric or Higher Metric for best path and why?RegradsPrashant

Hi,On a nexus 5548, when I try to force the speed to 1G on a 10g fiber port, the port goes downI know for SPF 1G , nexus will only  recognize it if I set speed to 1gDo I need to use a SFP-GE-S ?interface Ethernet2/13  speed 1000  duplex fullsw# sh in...

Does anyone know if the image on a C3560C supports multicast and which command set I have to use ?It has been a while since I had to configure multicast en just copying commands from a 6500 doesn't work I added the ip multicast-routing distributed co...

If any of you have time and wouldn't you mind helping me with a cisco 1841 router, I would greatly appreciate it. I need to forward ports 80, 443, 22 to the secondary inside address. Some background info:We use ATT for AVPN connectivity. The T1 comes...

Hi,The network dirgram  is :dhcp client - ( SW1 port 1 ) - SW1 - ( SW1 port 2 ) - SW2 - dhcp server The SW1 is Catalyst 2960S switch ( WS-C2960S-48TD-L ) with universal image ( c2960s-universalk9-mz.122-55.SE7 ).We tried to enable the dhcp snooping f...

Hi All.I'm just worried that above subjet command will be used in first time in our switching environment.Basically, all of vlans are allowing in x-over trunk interface. Btw, we don't want to allow specific vlan a, vlan b.the work procedure will be h...

Hi!A L3 interface is configured as a dhcp relay interface. After the DHCPDISCOVER message from a client is forwarded by this interface to the DHCP server (as defined with the ip helper address command), the DHCPOFFER response from the server is usual...

Dear All,I had a problem with two of our Catalyst3750.I'm trying to configure a Port-Channel using 2 couple of GLC-BX-D & GLC-BX-U SFPs with a Single Fibre pair.this is my network layout:SIDE A SIDE BGLC-BX-D port1 <----> GLC-BX-U ...

Hi allI have been reading alot of issues around output drops on cisco 3560 switches when qos is enabled.I just want to provide priority for my voice traffic but without dropping anything else.the switch is not congested at all, some people say I may ...

Hi,We have a mixture of Catalyst and Nexus switches and want to implement a safeguard in Cisco ACS in the form of a command authorisation set which prevents users from entering the command "switchport trunk allowed vlan x" without the "add" or "remov...

My squadron has purchased two ASA 5505s which they would like to use to create a very basic standalone network for training purposes. I have configured two laptops to act as domain controllers for two seperate domains behind each ASA. Thus far I have...