Category Archives: VTP

CCNA Certification Changes 2013 Summary

Posted on 2013/04/03 by

On 26 March 2013, Cisco announced new CCNA certifications.. Here is my interpretation of the changes. In a nutshell ICND1 is now considerably harder, absorbing much of the ICND2 content (IPv6, ACLs, VLANs and OSPF) while ICND2 seems to be … Continue reading →

Posted in 802.1ad, 802.3ad, 802.3ax, ACL, CCNA, Certifications, Cisco, EIGRP, Etherchannel, ICND, ICND1, ICND2, IPv6, New CCNA certification, New Cisco certifications, opinion, OSPF, portfast, rant, rapid spanning-tree, RIP, Routing, spanning-tree, VLANs, VLSM, VTP, wifi, wireless network | 6 Comments

The Access VLAN is dead. Long live the Native VLAN.

Posted on 2012/03/11 by

I saw a question recently that asked “What is the point of the Native VLAN?” – and I could sense a degree of frustration in the question caused by Cisco’s weird way of describing untagged VLANs differently on different port … Continue reading →

Posted in Access VLAN, CCNA, Cisco, Native VLAN, VTP | Tagged , , , , , | 4 Comments

Remember – VTP is sent untagged (so ends up on the native VLAN)

Posted on 2010/12/14 by

When VTP sends updates, they are sent without tags. So (assuming the native VLAN is VLAN 1) if you have restricted your trunk port at the receiving end with a command like: switchport trunk allowed vlan 2,10,20 it will drop … Continue reading →

Posted in Cisco, VTP | 1 Comment