Is it possible to decrease the convergence time of RSTP within a network if the root bridge goes down?
Forum Posts
Resolved! Multi Mode fibre not working
Hi Team,I have SFP-10G-SR Multimode module connected to two switch.(C9500)The issue is when I plug multimode fibre in the module the link doesn't come up.However, when I plug Single mode fibre in Multimode module both side of switch link come up.Any ...
Hello all, i have a pair of 4500X, connected with 10G LR SFP+They are connected via an ACCESS VLAN.On both side i have two pretty new (and daily used) notebooks used to measure throughput.While measuring i always observe a disbalance from side A to s...
Hi guys,I'm running a Cisco WS-C3850-12X48U, I've just tried to add a C3850-NM-8-10G module (previously blank) to it but it seems it's not detected rejected.Nothing in console when adding/removing the module, links aren't going up.How to be sure the ...
OK, stupid question. I have a client with an isolated environment. They have two single catalyst 9300's and are looking to add a new switch to each, making two stacks. Since i do not have access to the equipment, I asked for show vers on both the c...
I have a pair of Cisco 9500 switches in a VSS stack that are running 17.3.5 release and have been up for 145+ days. Now it seems that I not only can't ssh to the device, as it no longer accepts my TACACS login and I can't even console into the switch...
I have several Catalyst 9200L switches that I need to connect across old multimode fiber. I have GLC-SX-MMD= modules connected into their expansion ports, but they do not communicate unless I add a media converter into the mix. Why will my GLC modu...
Resolved! cisco WS-C2960X stack cable replacement
Hello Cisco Community!We should replace the stack cable between switch 1 Port 2 and switch 3 Port 1 in the stack:switch#show switch stack-portsSwitch # Port 1 Port 2-------- ------ ------1 Ok Down2 Ok Ok3 Down Okswitch#show switchSwitch/Stack Mac Ad...
I have 3 pc's connected to a switch( SW1) , that switch is connected to a router(R1) , I have another switch(SW2) also connected and also with 3 pc's connected I connected (sw1) with 192.168.1.1 and (sw2) with 192.168.2.1 ,,,,,,,,, and gave each pc t...
hi team, i have Cisco 9200L its not boot properly its showing below logs Initializing Hardware...Bus is busy - 0x2(status)ERROR: TAM write failed (3000)ERROR: TAM write failed (3000)act2_read_raw_idprom failed...Unable to read byte 1. Timing ...
Hello,I need to configure DHCP snooping as shown in the network topology three-tier architecture. the core switch CSW-2 connected DHCP server interface e2/3. which switch do I need to configure DHCP snooping? and which interface I need to configure I...
Hello guys I'm writing because I have observed something strange on one of the 9300 stacked switches. I thought I had found a solution by creating a port channel within the same NIM module instead of spanning across modules. In that case, we experien...
Hi,Is there any way to simulate Cisco switch stack by using IOSvL2, If yes, how to configure it.If we can't then how to simulate switch stacking using gns3.Thanks in advance.
Hi I have cisco 9500 core directly connected to 9200 access. both switches are connected by etherchannel. but when is end packets over 5000 two packets are dropping out of that 5000. I created the Etherchannel manual on both sides I didn't create any...
Hello everyone ! I'd like to know details about that what are the risks during password recovery in rommon mode on cisco 2960 switch ? What could be happened if there will be any mistake during the process? What are most sensitive tasks should I be ...
