Nexus has its own in-build wireshark feature(Cisco Nexus Packet Captures With Ethanalyzer) which is called ETH. By default, It can capture maximum 10 packets. But we can configure it for more using limit keyword. By using this feature, we can capture both incoming and outgoing traffic from CPU or only incoming traffic from CPU or… Read More »
Source guard is a filtering feature that permits the traffic, only when source Ip address and source MAC address is matching in DHCP snooping binding table or when matching with the static source entry. below is the example of both nexus source guard and IOS IP verify unicast source It checks the every single packet… Read More »
Storm control is a feature of switching to control unnecessary or wrong traffic. which can cause of disruptions. This traffic can be broadcast traffic , multicast traffic or unicast traffic. Below is the example of Cisco Storm-Control Configuration. Generally, It should be configure on interfaces. where desktops and servers are connecting or It should be… Read More »
RBAC (Cisco Role Based Access Control) is used to create customized role for users. It is useful when we are not having RADIUS server. We can also restrict the access with VRF , VLAN and interfaces. For example , We can define the a role and assign it to a user. In which user will… Read More »
cisco fabric services (CFS) is used to synchronize the features between devices under a common region. These features or services can be NTP , RADIUS , STP , Syslogd , Session mgr and fwna. By default, All devices begins in the same region and this region is called default region. But we can also create… Read More »