RSVP-TE-Customer-v11

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TE Explorer A Comprehensive RSVP-TE Tunnel Management Solution

TE Explorer : 

TE Explorer Network-wide tunnel visibility enabling reliable service delivery over RSVP-TE tunnels Leverages powerful Route Analytics platform to monitor, analyze and engineer TE tunnels Software license update to Route Explorer product suite Packet Design, Inc. Proprietary and Confidential 1 Packet Design introduces comprehensive solution to manage Traffic Engineering enabled networks

Deployment Trends &Management Challenges : 

Deployment Trends &Management Challenges Increasing TE deployments by SPs& mobile operators to deliver services with high bandwidth, low data loss requirements E.g. Mobile video, Video conferencing, data center virtualization, etc. Different deployment scenarios each with its own management challenges E.g. full-mesh tunnels among core routers, edge to edge ad hoc tunnels, etc. Understanding interaction of TE tunnels with other technologies is difficult yet important Changes in IP layer impact TE tunnels and tunnel dynamics impact L3 & L2 VPN services Tracking all aspects of TE tunnel management in the context of multivendor network is critical for effective service delivery No uniform feature support across vendors; No easy way to comprehensively monitor or view tunnel related info

Existing Solutions are Inadequate : 

Existing Solutions are Inadequate Not Dynamic Present only periodic and static snapshots of tunnel configuration and tunnel paths Incomplete Data Data collection via SNMP polling: information available in SNMP MIBS is limited, heavy load on routers Vendor specific: e.g. compatible with only Cisco or only Alcatel etc. Limited Functionality Provide no information on tunnel protection, bandwidth, usage etc. Maintain limited history or do not offer what-if modeling capabilities Siloed Do not have any knowledge of underlying IP layer dynamics Do not integrate with other MPLS services (L3 VPNs, L2 VPNs)

TE Explorer: Key Features : 

TE Explorer: Key Features Dynamic tracking of TE tunnels across the network Leverages Route Analytics platform to provide near real-time tunnel status information Efficient data collection via vendor-optimized mechanisms Comprehensive functionality covering all aspects of tunnel management Detailed info on tunnel status, protection, bandwidth & usage Real-time monitoring, visualization, historical analysis and modeling capabilities Fully integrates with other ‘layer-3 technologies’ Uses Route Analytics to correlate with dynamics of IP layer, various MPLS services such as VPNs Packet Design, Inc. Proprietary and Confidential 4

Track Tunnel Dynamics in Real-Time : 

Targeted Exploration Detect all tunnel changes (delta from baseline) Queries all routers Once every 30 minutes Collectconfiguration & state information of all tunnels Queries all routers Once every day Track Tunnel Dynamics in Real-Time Packet Design, Inc. Proprietary and Confidential 5 Establish Baseline Detect Changes Track Dynamics All query intervals are user configurable Full Exploration Track changes to specific tunnels in response to traps, syslog & IGP events Query specific routers relevant to the event On receiving an event (no more than every 5 minutes) Light-weight Exploration

Efficient & Complete Data Collection : 

Efficient & Complete Data Collection Query routers in the network on an ‘as needed basis' to collect RSVP-TE tunnel information Router access method is vendor specific – to retrieve data efficiently with minimal router load Router access only via SNMP is not a viable option Some vendors do not populate MIBS with all necessary tunnel details Packet Design, Inc. Proprietary and Confidential 6 CLI Netconf SNMP CLI (Future)

Comprehensive Functionality : 

Comprehensive Functionality Tunnel Dynamics Monitor tunnel status, stability & changes Tunnel Protection Analyze secondary, FRR & SRLG protection schemes Tunnel Bandwidth Track tunnel reserved bandwidth, available bandwidth and actual traffic utilization Tunnel Design Model changes to TE tunnels, routing & traffic Packet Design, Inc. Proprietary and Confidential

Tunnel Dynamics: Status : 

Tunnel Dynamics: Status Monitor all tunnels in the network and their state from a central location Packet Design, Inc. Proprietary and Confidential List of all tunnels in the network Current state of the tunnels

Tunnel Dynamics: Status : 

Tunnel Dynamics: Status Monitor all tunnels in the network and their status from a central location Conveniently view detailed tunnel information via Inspector including tunnel attributes, constraints, history etc. Packet Design, Inc. Proprietary and Confidential Key tunnel attributes All tunnel path options including the currently active one

Tunnel Dynamics: Status : 

Tunnel Dynamics: Status Monitor all tunnels in the network and their status from a central location Conveniently view detailed tunnel information via Inspector including tunnel attributes, constraints, history etc. Visualize the precise tunnel path either on the network map or detailed tunnel map Packet Design, Inc. Proprietary and Confidential Tunnel path from headend to tail

Tunnel Dynamics: Status : 

Tunnel Dynamics: Status Monitor all tunnels in the network and their status from a central location Conveniently view detailed tunnel information via Inspector including tunnel attributes, constraints, history etc. Visualize the precise tunnel path either on the network map or detailed tunnel map Identify routers and links with high concentration of tunnels Packet Design, Inc. Proprietary and Confidential Routers & links with maximum tunnels Routers & links with maximum tunnels

Tunnel Dynamics: Track Changes : 

Tunnel Dynamics: Track Changes View all tunnel changes in a selected time period Verify configuration changes are per design (e.g. during a maintenance window) Analyze tunnel path changes following failures or optimization Ensure changes to tunnel paths do not adversely impact other services (e.g. reserved bandwidth on links exceeds optimal value) Compare the state of tunnels between any two points in time Quickly diagnose root-cause of tunnel problems including changes in tunnel specification or state Packet Design, Inc. Proprietary and Confidential 12

Tunnel Protection: Secondary : 

Tunnel Protection: Secondary View current status of secondary LSP e.g. active, signaled, configured etc. For active secondary LSPs analyze the root-cause of primary being inactive e.g. path constraints, reserved bandwidth etc. Visualize the paths of secondary LSPs and compare them to primary LSPs Ensure path diversity etc. Packet Design, Inc. Proprietary and Confidential List of all Secondary LSPs and their detailed state Comparison of Primary and Secondary LSPs: Not all hops of Secondary are diverse from Primary!

Tunnel Protection: FRRs : 

Tunnel Protection: FRRs Track various FRR protection schemes: Node FRR, Link FRR, Bypass Quickly find tunnels with no protection or partial protection Packet Design, Inc. Proprietary and Confidential Tunnels with end-to-end Link FRR protection: All Links are protected Tunnels with partial Node & Link FRR protection: Only 1 of 11 routers & 3 of 12 links are protected

Tunnel Protection: FRRs : 

Tunnel Protection: FRRs Track various FRR protection schemes: Node FRR, Link FRR, Bypass Quickly find tunnels with no protection or partial protection Know the precise node or link along the tunnel path without protection Packet Design, Inc. Proprietary and Confidential Router R4-OSPF and link R4-OSPF R5-OSPF are not protected

Tunnel Protection: FRRs : 

Tunnel Protection: FRRs Track various FRR protection schemes: Node FRR, Link FRR, Bypass Quickly find tunnels with no protection or partial protection Know the precise node or link along the tunnel path without protection Visualize the tunnel path via FRR in case of link or node failure event Packet Design, Inc. Proprietary and Confidential Tunnel path via FRR if router R8-OSPF fails

Tunnel Protection: SRLG : 

Tunnel Protection: SRLG View configured SRLGs in the network Know the tunnels impacted by a SRLG failure Identify primary LSPs sharing a SRLG with pre-signaled secondary or back-ups SRLG failure will render the protection by back-ups ineffective Track links that share SRLG with FRRs protecting them SRLG failure will render the FRR protection ineffective Packet Design, Inc. Proprietary and Confidential

Analyze Tunnels to Identify Critical Problems : 

Analyze Tunnels to Identify Critical Problems Inactive Primary Tunnels Primary tunnels that are either down or active via a secondary tunnel Active Tunnels with Suboptimal Constraints Tunnels that are not set-up with the best possible constraint Tunnels with Paths Different from IGP Tunnels that follow a path different from that of IGP Active Tunnels with ‘long-lived’ FRRs Tunnels with active FRRs that did not converge to primary or secondary tunnel path after a node/link failure Track tunnel flaps caused by router/link failures, re-optimization, preemption etc. Packet Design, Inc. Proprietary and Confidential 18

Tunnel Bandwidth / Usage : 

View up-to-date tunnel bandwidth & traffic utilizations Flag tunnels with high reserved bandwidth or with high utilizations exceeding reserved bandwidth Identify links with high traffic utilization or low ‘available TE bandwidth’ Know precisely the tunnels consuming bandwidth or flows causing congestion Understand the impact of secondary &FRRs in the event of single link failures Ensure path diversity etc. Packet Design, Inc. Proprietary and Confidential 19 Tunnel Bandwidth / Usage Tunnel with 180 Mbps of reserved BW and X Mbps of Utilization Link with least available BW along the tunnel path Links with NO available BW

Tunnel Design: Tunnel Modeling : 

Tunnel Design: Tunnel Modeling Model individual or full-mesh tunnels with the flexibility to specify any key attribute

Tunnel Design: Routing, Traffic Modeling : 

Tunnel Design: Routing, Traffic Modeling Make changes to routing & traffic models Change link capacity Increase tunnel traffic Introduce additional traffic at PE … Add / fail a router Add / fail a link / fail SRLG Announce/withdraw a prefix … Routing Edits Traffic Edits Packet Design, Inc. Proprietary and Confidential

Tunnel Design: Impact Analysis : 

Tunnel Design: Impact Analysis Packet Design, Inc. Proprietary and Confidential 22 Analyze the impact of tunnel changes Know the optimal path for the new tunnel including all intermediate routers and links View list of preempted tunnels (due to the edits) including their current and previous paths Identify links with high traffic utilization or low available bandwidth Ensure diverse load-balancing tunnel can be set-up given the path constraints Link 10.3.8.1  10.3.8.2 has maximum increase in traffic of 27 M (27%) due to the addition of new tunnels

TE Explorer – Key Benefits : 

TE Explorer – Key Benefits Reduce mean-time to recovery Track tunnel dynamics and state in real-time. Quick, proactive problem resolution Avoid SLA payouts Ensure all tunnels are protected and sufficient capacity is available in case of failures Planned Capital Expenditure Monitor tunnel bandwidth usage and trends. Model and analyze future TE capacity requirements Packet Design, Inc. Proprietary and Confidential 23