Hi,Is there any chance to use Root guard feature on trunk ports in any kind of environment in cisco world.I have seen in one config, they applied root guard on trunk port. generally root guard feature is used for avoiding accidental situations or t...
Forum Posts
Hi there,We have a basic corporate internet connection (100mbit/s down, 10mbit/s up, some guaranties) with eight fixed ip addresses (in the configuration .72 to .79). To hook up our network to the internet, we are using a cisco 892 router.I am new t...
The config is below. I'm trying to figure out why what I listed in the title of this thread is happening. If anyone has input to share that might help solve this issue, by all means I implore you to contribute. This particular switch blew smoke yeste...
Resolved! STP problem in vlans
hi guys i have a strange problem i have two cisco 3850 stack switches and add all vlans on it when i use "show spanning-tree summary" command, just 128 vlan shown and when i use "sho run | s vlan" displays: no spanning-tree vlan 1138-1243,1245-1467...
Hello! Is it posible to add 8 QSFP in one LACP chanel? I have 6509 VPS and NEXUS 9000 VPC and want to connect int by 8 QSFP, but I have only 4 up and 4 hot standby. Is it posible to make all up?
Resolved! LACP load balancing traffic Question
Hello guys, I have 2 3750 stacked core switches, which are connected through Port Channels to another Switch SG550x.The port channels are Up and running with LACP. Now my question is if Load Balancing between the link is working correctly. Basically ...
Hi, Its not clear to me reading the datasheet for the 3650 whether PoE+ is support on some or all ports when using the DC power supplies (PWR-C2-640WDC). This is in regards to both the 24 and 48 port models (ex: WS-C3650-48PS and WS-C3650-24PS) Can...
We are having EOL WS-C3560G-24TS-S switch and looking suggestion to purchase a new device. I have suggested a WS-C3650-24TD-S latest device. WS-C3650-24TD-S Fixed Uplinks : 2 x 10 Gigabit Ethernet with SFP+ and 2 x 1 Gigabit Ethernet with SFP Note :...
hi,i would like to use PWR-C2-250WAC as secondary PSU for a 3650 switch.the switch will have no PoE endpoints.can anyone confirm the said PSU is compatible to be used as secondary power. see table 3 from below link:https://www.cisco.com/c/en/us/produ...
Hi all, Apologies if this may sound a silly question but I am kinda stumped by the Switching capacity of a 3650 (datasheet description) for a 24 port model with (non-multigigabit models) to be at 92Gbps. In an ideal world, Switching capacity should ...
Hello, I saw, by using a port scan, that the tftp upd port is open. Is there any threat? It is possible to turn it off? Thank You! PORT STATE SERVICE 69/udp open|filtered tftp Nmap done: 1 IP address (1 host up) scanned in 0.45 se...
Hi, we have 2 couples of 3850-48XS (C and K) stacked in 2 different datacenters experiencing dual active and reloads on both the stacks. All the switches are running Denali 16.3.3 with the same license level. Each couple is configured in a virtual st...
Hi , Please find attaached diagram.We are running MSTP in core switch and RSTP in distribution.I have a server which is in vlan 128.currently the traffic is passing through core sw2.(HSRP priority 110)As per stp "core sw1" is the rootbridge for vlan ...
Hey, I have a VLANs architecture where a switch has a separate VLAN with a core switch for inter-vlan routing. All the switches are connected directly to the core switch and while having information about all the directly connected neighbors through...
I know that I would need to create static routes or use a routing protocol to make loopback interfaces pingable but what about if I create loopbacks on switches?
