Home / Tag Archives: CCNP – BCMSN

Tag Archives: CCNP – BCMSN

CCNP – BCMSN (DHCP Snooping)

An important part of passing the Cisco CCNP BCMSN exam and protecting your network from intruders is to recognize that even everyday protocols and services can work against us once that intruder is in our network. It may be hard to believe, but something as innocent as DHCP can actually ...

Read More »

CCNP – BCMSN (QoS Service Types)

Defined in RFC 2281, HSRP is a Cisco-proprietary protocol in which routers are put into an HSRP router group. Along with dynamic routing protocols and STP, HSRP is considered a high-availability network service, since all three have an almost immediate cutover to a secondary path when the primary path is ...

Read More »

CCNP – BCMSN (The HSRP MAC Address)

To pass the BCMSN exam and earn your CCNP, you’ve got to know HSRP inside and out! Part of that is knowing how the MAC address of the virtual router is derived, and another part is knowing how to change this address. We’ll look at both features in this tutorial. ...

Read More »

CCNP – BCMSN (Getting Started With HSRP)

Defined in RFC 2281, HSRP is a Cisco-proprietary protocol in which routers are put into an HSRP router group. Along with dynamic routing protocols and STP, HSRP is considered a high-availability network service, since all three have an almost immediate cutover to a secondary path when the primary path is ...

Read More »

CCNP – BCMSN (Trunking And Trunking Protocols)

To earn your CCNA or CCNP certification, you’ve got to understand the basics of trunking. This isn’t just a CCNA topic – you must have an advanced understanding of trunking and etherchannels to pass the BCMSN exam and earn your CCNP as well. Before we address those advanced topics, though, ...

Read More »

CCNP – BCMSN (The VLAN.DAT File)

CCNA and CCNP candidates who have their own Cisco home labs often email me about an odd situation that occurs when they erase a switch’s configuration. Their startup configuration is gone, as they expect, but the VLAN and VTP information is still there! Sounds strange, doesn’t it? Let’s look at ...

Read More »

CCNP – BCMSN (How And Why To Build an Etherchannel)

CCNA and CCNP candidates are well-versed in Spanning-Tree Protocol, and one of the great things about STP is that it works well with little or no additional configuration. There is one situation where STP works against us just a bit while it prevents switching loops, and that is the situation ...

Read More »

CCNP – BCMSN (Server Load Balancing SLB)

When you’re working on your BCMSN exam on your way to CCNP certification, you’ll read at length about how Cisco routers and multilayer switches can work to provide router redundancy – but there’s another helpful service, Server Load Balancing, that does the same for servers. While HSRP, VRRP, and CLBP ...

Read More »