Hello everyone! The problem:We have about 1500 access switches with managment vlan.Network scheme is attached below.ARP aging time is not reset to zero with existing traffic in management vlans. We have OpenNMS which pings hosts every minute + takes ...
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Forum Posts
Resolved! Dot1q Encapsulation on Access Ports
Some switch models require the command "switchport trunk encapsulation dot1q" to be set on a port prior to enabling the port as "switchport mode trunk".My question is:1.) What are the specific ramifications that occur (if any) of leaving "switchport ...
Hi I try to configure on a 1921 Router with SW Rev. c1900-universalk9-mz.SPA.151-3.T1.bin a VRF DHCP Pool with Static ReservationThis is my configip vrf OFFICE rd 200:2 route-target export 200:2 route-target import 200:2!ip dhcp excluded-address vrf ...
Let's say you have 2 routers for redundancy connected to 2 switches for redundancy (so each switch connects to each router). If I need the same sub-interfaces on each interface on the router since they are providing redundant connections for each swi...
Hi All, Need some help on the below issue : Switch WS-C3850-48P, stack of 3. I wanted to add a MAC address to the MAC access list but messed up: I used >> mac access-list extended Allowed-User-MAC-ACL-IN permit xxxx.xxxx.xxxx ffff.ffff.ffff any...
Resolved! C2960X PoE issue
Need to ask if anyone has ran into an issue that if 6 devices are connected in consecutive order? Co-workers have some switches that when they connection 6 IP Cameras on consecutive ports (17-22), port 18 and 20 do not power up.. This was duplicated ...
Resolved! good network diagram software
Hi every body!This is not technical question , i just want to know what software is commonly used to to draw network topology in reports.thanks a lot !
Hi Guys, I wanted to know how MVRP operates over per VLAN spanning-tree. Does MVRP's propagation of dynamic members across links depend on the STP state of that link. If Yes, Does STP have problems converging in case of a loop as ports will be dynami...
Dear community We would like to remove the folder from within a TAR file, so that the bin file is located at the root of the TAR archive. A typical TAR file has following structure: Root |c2960x-universalk9-mz.152-2.E6 |html |lots of files |c2...
Hi, I am looking at scenario in which two PC are in different broadcast domain and connected through pure layer2 switch.Can somebody explain sequence of packets starting from switch is on and how packet can communicate from PC1 to PC2. PC1 10.10.10.1...
Resolved! Stackwise Virtual Cable
Hi Team, To configure stackwise virtual in Cisco Catalyst 9407, do we need extra cable like stack cable in Cisco access switches ? If it is what is the part number for that cable ?
Hi Recently we have faced an issue in cisco switch 3850 series where Rx is down and Tx is up in 10G interface. During this scenario , the interface is down and line protocol also down but the peer end connection was UP. TenGigabitEthernet2/1/3 is d...
Hi , I wonder if someone could help with two questions.1. we have Nexus 3548 - 48 port switch but only 24 port license, do we have to use first 24 port only or we can choose any ports as far as they are 24 in total?2. it has two management ports? can...
Greetings, I have deployed the software version of a WLC, everything seems fine however, end points does not get ISE security tags, I found that the WLC is not establishing the connection (I edit the IP's below): (Cisco Controller) >show cts sxp c...
Hi All, Am hoping to upgrade our 3650 switches to a more current and up to date version (looks like nobody has bothered to do this yet), reading about the different options am hoping to go for Everest. But am reading some of these version are very ...
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