Category: Cisco

Cisco Unified Communications Manager Call Routing Entity Relationship

Cisco Unified Communications Manager Call Routing Entity Relationship

Entity Relationship (ER) diagram to summarise Cisco Unified Communications Manager (CUCM) call routing configuration components, and their logical rel [...]
SSH Public Key Authentication to Access Linux (2)

SSH Public Key Authentication to Access Linux (2)

This post demonstrates how to generate a public and private key pair using PuTTYgen on Windows; and how to convert a .pem ( Privacy Enhanced Mail cert [...]
VRF Route Leaking with MP-BGP: routing control for AWS transit VPC

VRF Route Leaking with MP-BGP: routing control for AWS transit VPC

The AWS transit VPC, which adopts a hub-spoke architecture to traverse traffic between other VPCs and on-premises, uses BGP as dynamic routing. VRF ro [...]
Jabber Deployment ‘Gotchas'(2): Contact Directory Search Why LDAP?

Jabber Deployment ‘Gotchas'(2): Contact Directory Search Why LDAP?

Despite Cisco supports both UDS and LDAP directory search, I'd recommend to use LDAP directory search only, due to the caveats associated with UDS sea [...]
Jabber Deployment ‘Gotchas'(1): Cisco Unified Communications Manager IM and Presence Centralised Deployment

Jabber Deployment ‘Gotchas'(1): Cisco Unified Communications Manager IM and Presence Centralised Deployment

The centralised deployment can provide IM and Presence services to multiple remote CUCM voice and video clusters. In a centralised deployment, the IM [...]
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