Looking for a bit of guidance. I have a customer that is using a Catalyst as their CPE, it also appears they are using this device as one of their core switches as there are over 20+ VLANs connected to the device through a number of trunks. The cus...
Hi all,I`m strugling with choosing the right image for my 3850. Should i install universal image or universal without DTLS. Can someone advise which image i need? In sh version output i have package with ldpe mark, but the image is universal. Thanks ...
Hi All, I've just added a new 1G backup link between two sites which also has a 10G primary circuit. The delay on the primary link is 10 microseconds as is the delay on the backup link and I've also added a delay of 10 (100 micro seconds) on the b...
Hi all, This is a network topology currently i am working on. I have user connected in different vlan and server in different vlan. All my vlan gateways are configure at DS Cisco 3850 switch. I am using OSPF between DS and core (nexus 9504). Cur...
Dear All, Can you please tell me is it possible to use Cisco 891F-K9 on the connection from ISP is VDSL2, I have changed the ISP modem configuration into Bridge mode and then configured Dialer interface , but I am not getting IP from from ISP, it i...
Hi, Having problem connecting TV box (Oasis) to a switch 2960 After connecting to any port, the port goes up and after couple of seconds goes down I have changed duplex, speed. Still does not work Are those TV boxes use different protocols? I have ...
Hi Genius, Anyone can confirm that cisco 4500X switch will have the ALS(Automatic Laser Shutdown) feature.
Hi, i have tried to configure the Ethernet OAM between Cisco switch and Huawei Switch, Pls find the below topology Topology: Problem Observed When we tried to remove the single core from the Huawei switch then both the switch interface down We...
We recently purchased a couple 2960CX-8PC-L. I've tried inserting 2 different GLC-T sfp's into both Gi0/11 and Gi0/12, but they both go err-disabled. I can insert a GLC-SX-mmd GLC-LH-SMD with no issues. The GLC-T's are Cisco brand and I've tested...
Morning all, I am setting up a port mirror for 2x non-stacked Cisco 4000 switches. We shall call them switch 1 and switch 2. I need to mirror all Vlan activity for a specific Vlan on both switches and send it to a specific port on switch 2. On S...
Hi All, I am facing a issue where after doing initial configuration for Cisco router 4451 and escaping , I am not able to login as its asking for username which i have not set. Please help
hi cisco specialists... I have some problem about high cpu of 4948e. I found out that the switch occurs high cpu by L2 bridge to CPU. high cpu occurs about every four hours. does anyone know what L2 bridge to CPU means? I googled it but I coundn't ge...
I have no idea why I cannot get DHCP to work?? can I get some help? would be greatly appreciated. heres the link: ENABLE PASS IS CIASS https://drive.google.com/file/d/1EdBuLulDbR57cOYlvIcmM2qZfKZUFDJh/view?usp=sharing
I am troubleshooting an issue on a pair of Nexus and having hard time finding good doc on the meaning of asterisks , + symbol, etc. mean in show mac address-table. See below. VLAN MAC Address Type age Secure NTFY Ports/SWID.SSI...
Hi i am using C3850-12s- switch . My question is if i am using a converter in between a Two Cisco switches Switch A and Switch B . i am Securing the Specific port of two switches using MAC id of that two Specific Ports on either side. Will it stil...
