I am investigating a private vlan solution to accomplish an end goal of host isolation. In the end I'd like to see my endpoints not able to communicate with each other for additional privacy/security. While experimenting with this I ran into the "s...
Forum Posts
Hi, Newbie question: I have a 2960x with 3 VLANs, 1 (native), 2 & 3. Port 24 is set up as a trunk so that it can carry traffic from all 3 VLANs. It will be connected to a router, to provide Internet access. We do not need to route anything betw...
Dear Community, we see a weird behavoir of 1G multimode GLC-SX-MMD SFPs on every port of the modules (except N5K-C56128P-SUP). The link comes up when using SUP SFP slots (Mod1), but links remain in down state when inserting SFPs inside slot 2+3 (N56-...
Resolved! Router configuration
Hi friends We are using Cisco 2911 series Router our service provider IP address is 182.73*.*/30 they have provided 16 static WAN IP address ie 182.72*.*/28we have configure the internet service provider IP address in Gi0/0 and WAN static IP Addres...
Hi Experts, We have a WLC 2106. Everytime this WLC reloads due to whatever reason then the time of this is always ressting it to about it to something else than the current time. We nothing in NTP settings before that we used to have NTP server con...
I have a disaster recovery setup at a remote site that includes multiple 7K switches. Currently it is running RPVST+. The issue we are having is that we have a lot of trunk links set up between these switches that have a lot of VLANs going across the...
Resolved! Using same priority number on vPC Peers
So if I have 2x Nexus 9k or 3k switches in a VPC domain, and I want them to support servers that will connect to them in Active Active mode, both will have SVIs with HSRP (different priorities meaning 1 switch let' say has priority 110 for SVI9 and o...
Hi everyone I'm getting the below errors continuously 1. [PRTG Monitor] GCHOSW switch (#.#.#.#) (083) GCHOESX03_P6 Traffic (SNMP Traffic) Down (No response (check: firewalls, routing, snmp settings of device, IPs, SNMP version, community, passwords e...
Resolved! Cisco 2960XR SFP+ 1G help needed
Hi, I have a new 2960XR switch (48 1G copper ports and 2 Ten Gig SFP+ ports). I need to configure uplink ports to a exiting switch using 1G fibre (multimode). Im using a 1G fibre SFP inserted in the Ten Gig SFP+ port. This appears to dynamically c...
this is odd to me, i use the same acl on my 3850 and 3650 switches and they it works but on my C3560cx switch it wont. there is something i'm missing but got me what it is. my ios is 15.2(6)E1 here is my acl mac access-list extended Samsung-VoIP per...
Resolved! Nexus 5K network topology change
Hello! I would like to ask help to decide the reform of our network topology. I drew the relevant part of network and the 2 opportunity. We have 2pc 3850 (stack) L3 switch (Core-AB) as Designated router with OSPF routing. The area numbers 12, the ...
Good day to all! I am detected high "Transmit Discard" on solarwind on certain ports. After drill down there are mostly connected to PC. Found that when the PC is shutdown or sleep, the switch port still show connected, but it state to 10 mbps ha...
Hi everybody I have got a problem with a Stack of 4 WS-C3750X-24T-S IOS 15.0(2)SE9 In the cache, I see a mac address associated with a portchannel (Po7) to another switch. eec2.019b.d16f DYNAMIC Po7 But I see in a switch connected to this stac...
i am a bit confused on lacp and pagp. when setting trunking mode is it the same steps on both because i have seen some people who do the interface port command on pagp and they enable trunking through there but on lacp they don't do the interface t...
