Migration of network traffic to new core infrastructure

Domain: 
server.makemagic.gr
Status: 
Closed
Priority: 
critical
Time Period: 
2012-11-03 20:00 - 2012-11-04 10:00

Risk Rating:
Layer 3 IP Services – Possible Service Disruption (Downtime)

Description of Work:
As part of our Core network upgrade we will be migrating all layer 2 and layer 3 services from the current core platform to our new hardware. Services will be migrated at all PoP's (BYF, THN, MER, THE and CDC). Customers with layer 3 (IP transit) services are not expected to see any service disruption but there is a small chance of an outage if an issue does occur while traffic is moved to the new core network.

Justification:
This is an essential core network upgrade to facilitate the introduction of new services and the improvement of the core network capacity, resilience, redundancy and performance. The new network will be based on redundant CISCO ASR9K routing platforms with 10 Gig line cards and line rate packet switching.

The new network will utilise Multiprotocol Label Switching (MPLS) technology facilitating the introduction of new services such as: L2 and L3 Virtual Private Networks, Quality of Service (QoS), MPLS Traffic Engineering with Fast Reroute (FRR) for subsecond recovery against node/link failures.

The QoS will provide different class of service for different types of traffic virtually separating L2 and L3 traffic, enabling our clients to offer services such as Triple Play (Voice, Video and Data) with strict Service Level Agreement (SLA). More importantly the upgrade of our IP Transit Links to multiple 10 Gbps with each carrier together with the QoS will allow us to mitigate against DDoS attacks with the minimum impact to our client services.

Regression Details:
Rollback changes to current platform.

We apologize for the inconvenience and welcome any feedback.