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...
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...
I have created this backbone using Cisco 3750G as access/Distribution. I have brought all nodes as trunk links to a stack of 3 Cisco 3750G switches because i needed all those uplinks. I have not put spanning tree fortfast under those trunks but i a...
Hi Everyone,I was trying to find the mac address of root bridge for vlan 20DSW1#sh spanning-tree vlan 20VLAN0020 Spanning tree enabled protocol rstp Root ID Priority 24596 Address 001b.90e7.d480*************...
I config my PC's connect to network by IP phones PC jack and config voice vlan tag and PC Vlan on my switch.Then, I set dhcp snooping,ip source guard and arp inspection but after this change all nodes that connected to Iphones shut down!!I know ...
Hi if I configure dhcp on router after I configure and switchport port-security on switch fastethernet 0/1 interface fastethernet0/1 switchport access vlan 10 switchport mode access switchport port-security switchport port-security maximum 2 switchp...
Hello!I have a simple topology: two routers R1 and R2 connected to each other through ethernet link. Both routers runs OSPF. R1 runs OSPF process in the VRF 1. The ethernet link is configured for OSPF area 4. R2 also have loopback interface in area 0...
Need some help with STP, I have not run across this issue before and have set several of these IE3000 switches up in my own environment with no issues. This gear is at a remote site that I am trying to help out.VLAN 100 is for management, VLAN 125 is...
Is it normal on the ISR 4351 with this free memory using the show platform software status control-processor brief command? No initial configuration on the device and also out-of-the-box.
I am adding new CISCO POE switches to my network (WS-C2960L series switches). Unfortunately, visio stencils is missing from the library "Switches-Catalyst 2960 ". Does anyone know where I can get it from? Thank you, Serge
I have a 3560cx switch at a property (I'm not onsite) that keeps rebooting 1 or 2 times a day. When I do show version it says "Last reload reason: Power-on" Any ideas on what would cause it to reboot this frequently? Thank you
