When BGP sends an UPDATE packet to a peer it sends path attributes associated with the prefix. These path attributes are then used by BGP to pick the best route to a destination. BGP attributes are similar to metrics in OSPF and EIGRP in the way it uses them to decided on the best route.
My new toys in lab :) – part 2
How to enable SNMP in vSphere ESXi 6.0
First, you have to enabled SSH access to your ESXi node. You can do that in Configuration > Security Profile > Services > SSH in vSphere.
My new toys in lab :) – part 1
XenServer – virtual machine’s force shutdown
Sometime administrator cannot shutdown virtual machine in normal way. So, it’s simple how to do it by force.
XenServer – how to remove local SR
1. Fire display SR’s list (Storage Repository)
# xe sr-list
uuid ( RO) : 252cf868-5ff7-5d06-5607-4b4ef111cdf8
name-label ( RW): Local Storage 2
name-description ( RW):
host ( RO): rohan
type ( RO): ext
content-type ( RO): user
XenServer – autostart of VMs
In XenServer 6.x automatic start virtual machines has been removed because it caused problems with the functionality of HA (more information on the Citrix). Autostart functions can be restored by using the CLI.

HP ProCurve – hidden commands
HP ProCurve devices have a hidden set of commands that can be helpful in troubeshootingu or other special operations network. The command set can be different depending on the device model and firmware version. And now, briefly, step by step how to turn the hidden command:

Cisco ASA – “read-only file system”
Recently I did a software update and ASDM on Cisco ASA 5505. I encountered the following problem. The device had over year uptime and when I tried to copy software from TFTP server, I received a message – “read-only file system”. This caused me a little consternation.