Switching

Good Morning,   my customer bought those models of data center switches. My questions is:   Cisco, for the 5672 provides an adapter that convert a qsfp 40g to a sfp 10g, so i can use my 10g optic modules on this switch. Unfortunately on the 2332, thi...

Hello everyone,   I am managing a DMVPN infrastructure with two Hubs and around a thousand of Spokes. There is approximatively all Spokes "Tunnel 2" going to Hub2 UP and running well. I had move the HUB1 from a datacenter to another and since, i have...

Hello,   I am aware that DMVPN can be configured without IPSEC (DMVPN with multipoint GRE) but not sure whether it will work without Security license on ASR 1001 series router ?   Also I want to know whether "adventerprise" license on ASR 1001 alread...

Hello, running a network with 3850 switches in access layer with dhcp snooping an ip device tracking, we wanted to add arp ionspection for specific vlans. Finally stopped arp inspection rollout because of this issue: 6519: Apr 12 14:05:25.265: %SW_DA...

I have replaced an old Juniper NetScreen device with an ASA. The ASA is connected to an ADSL modem and gets its IP via PPPoE. There are no issues with that. Unfortunately, it uses the ISP's DNS servers by default. On the old NetScreen device, I was a...

DAI invalid arp request Hello everybody!Faced a problem that I can not solve on my own. And on the Internet there is nothing on this issue. I hope for your help. So, In my network there are 5 switches with the same L2 security settings. The...

Hey,Just wondering if I can get some thoughts or solutions on the problem I am having with multicast routing. We have a DMVPN with on demand full mesh setup, and I am trying to route multicast traffic from spoke to spoke. I can recieve the multicast ...

hi,   How I can calculate the switching capacity of NEXUS 7k?   BR Abdul Karim

So,   Ethernet Frame Minimum Size--> 64 Bytes Default MTU--> 1500 Bytes Default MTU with the Header and FCS (CRC)--> 1518 Bytes Baby Giant Frame--> 1519-1600 Bytes Jumbo Frame--> 1601-9000 Bytes Super Jumbo Frame--> Over 9000 Bytes   However, if the ...

Hi, what does this command do?

we getting some message in our core switch %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on TenGigabitEthernet1/0/8 (80), with DSW1.P1.A GigabitEthernet1/0/28 (1) when we receive this log on our switch, at the same time we lost our con...

Dear Support Community   I have a stack of 3850 Switches (running IOS 03.06.05E) - I need to ensure the switch are ipv6 enabled.  Having checked the SDM template I can see it is running the "Advanced (high scale) template"   I can see to enable IPV6 ...