Ideally, in a campus network with L2 access design, we have dhcp server on distribution layer. Thus, we assign dhcp server ports as trusted and keep rest as untrusted so that we do not recieve any DHCP server type response from anywhere else in the network.
2) "switchport noneg" is typically used while connecting to routers or third party devices that do not support DTP, to prevent inconsistencies while link negotiation and results in unconditional trunking.
BPDU filtering is not recommended as such by any best practice, and neither would I. If an attacker connects to a port with bpdu filering, the port will lose portfast status and start participating in stp, and can damage the network to some extent. Whatmore, after he's through and you connect some authorized device, it would take default stp time = 20-50 sec for him to be on the network. Thus, I would recommend using BPDU Guard anyday over BPDU filtering.
3) Cisco Content Switches Network typically refers to the data center/server farm deployments using various techniques/designs/devices for load balancing traffic and L4-L7 services across multiple servers.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...