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Table of Contents
- play_arrow Introduction
- play_arrow Router Data Extraction
- play_arrow Routing Protocols
- play_arrow Equal Cost Multiple Paths
- play_arrow Static Routes
- play_arrow Policy-Based Routes
- play_arrow Border Gateway Protocol
- NorthStar Planner Border Gateway Protocol Overview
- Border Gateway Protocol Recommended Instructions
- BGP Data Extraction
- BGP Reports
- BGP Options
- BGP Map
- BGP Live Status Check
- BGP Routing Table
- BGP Routes Analysis
- BGP Information at a Node
- BGP Neighbor
- Apply, Modify, or Add BGP Polices
- BGP Subnets
- Getipconf Usage Notes
- BGP Report
- play_arrow Virtual Private Networks
- NorthStar Planner Virtual Private Networks Overview
- Importing VPN Information from Router Configuration Files
- Viewing the Integrity Checks Reports
- Accessing VPN Summary Information
- Accessing Detailed Information for a Particular VPN
- VPN Topology View
- Route-Target Export/Import Relationships
- Additional Methods to Access VPN Information
- VPN Path Tracing
- VPN Design and Modeling Using the VPN Wizard
- L3 (Layer 3) VPN
- L3 Hub-and-Spoke VPN
- L2M (Layer2-Martini) VPN
- L2K (Layer2-Kompella) VPN
- VPLS-BGP VPN (for Juniper)
- VPLS-LDP VPN
- L2CCC (Circuit Cross-Connect) VPN
- Inter-AS VPN
- Forming VPN Customer Groups
- Deleting or Renaming VPNs
- VPN Configlet Generation
- Adding Traffic Demands in a VPN
- VPN Traffic Generation
- VPN-Related Reports
- VPN Monitoring and Diagnostics
- play_arrow Multicast
- NorthStar Planner Multicast Overview
- NorthStar Planner Recommended Multicast Instructions
- Creating Multicast Groups
- Creating Multicast Demands
- Viewing Multicast Demands in the Network
- Comparing Multicast with Unicast
- Multicast SPT Threshold
- Multicast Reports
- Multicast Simulation
- Collecting Multicast Path Data from Live Network
- Importing Multicast Path Data
- Multicast Data Processing
- Viewing Multicast Trees
- play_arrow Class of Service
- NorthStar Planner Class of Service Overview
- NorthStar Planner Recommended CoS Instructions
- The QoS Manager
- Define Class Maps
- Create Policies for Classes
- Attach Policies to Interfaces
- Adding Traffic Inputs
- Using the Text Editor
- Reporting Module
- IP Flow Information
- Link information
- Traffic Load Analysis
- Traffic Load by Policy Class
- CoS Alias File
- Bblink File
- Policymap File
- Demand File
- Traffic Load File
- play_arrow Routing Instances
- play_arrow Traffic Matrix Solver
- play_arrow LSP Tunnels
- NorthStar Planner LSP Tunnels Overview
- Viewing Tunnel Info
- Viewing Primary and Backup Paths
- Viewing Tunnel Utilization Information from the Topology Map
- Viewing Tunnels Through a Link
- Viewing Demands Through a Tunnel
- Viewing Link Attributes/Admin-Group
- Viewing Tunnel-Related Reports
- Adding Primary Tunnels
- Adding Multiple Tunnels
- Mark MPLS-Enabled on Links Along Path
- Modifying Tunnels
- Path Configuration
- Specifying a Dynamic Path
- Specifying Alternate Routes, Secondary and Backup Tunnels
- Adding and Assigning Tunnel ID Groups
- Making Specifications for Fast Reroute
- Specifying Tunnel Constraints (Affinity/Mask or Include/Exclude)
- Adding One-Hop Tunnels
- Tunnel Layer and Layer 3 Routing Interaction
- play_arrow Optimizing Tunnel Paths
- play_arrow Tunnel Sizing and Demand Sizing
- play_arrow Tunnel Path Design
- Tunnel Path Design Overview
- Tunnel Path Design Instructions
- Designing Tunnel Paths Overview
- Backup Path Configuration Options
- Default Diversity Level
- Evaluate/Tune Options
- Advanced Options
- Viewing Design Results
- Tunnel Modifications
- Exporting and Importing Diverse Group Definitions
- Advanced Path Modification
- play_arrow Inter-Area MPLS-TE
- play_arrow Point-to-Multipoint (P2MP) Traffic Engineering
- NorthStar Planner P2MP Traffic Engineering Overview
- Point-to-Multipoint Traffic Engineering Instructions
- Import a Network That Already has Configured P2MP LSP Tunnels
- Examine the P2MP LSP Tunnels
- Create P2MP LSP Tunnels and Generate Corresponding LSP Configlets
- Examine P2MP LSP Tunnel Link Utilization
- Perform Failure Simulation and Assess the Impact
- play_arrow Diverse Multicast Tree Design
- Diverse Multicast Tree Design Overview
- Diverse Multicast Tree Instructions
- Open a Network That Already Has a Multicast Tree
- Set the Two P2MP Trees of Interest to be in the Same Diversity Group
- Using the Multicast Tree Design Feature to Design Diverse Multicast Trees
- Using the Multicast Tree Design Feature
- play_arrow DiffServ Traffic Engineering Tunnels
- DiffServ Traffic Engineering Tunnels Overview
- Using DS-TE LSP
- Hardware Support for DS-TE LSP
- NorthStar Planner Support for DS-TE LSP
- Configuring the Bandwidth Model and Default Bandwidth Partitions
- Forwarding Class to Class Type Mapping
- Link Bandwidth Reservation
- Creating a New Multi-Class or Single-Class LSP
- Configuring a DiffServ-Aware LSP
- Tunnel Routing
- Link Utilization Analysis
- play_arrow Fast Reroute
- NorthStar Planner Fast Reroute Overview
- Fast Reroute Supported Vendors
- Import Config and Tunnel Path
- Viewing the FRR Configuration
- Viewing FRR Backup Tunnels
- Viewing Primary Tunnels Protected by a Bypass Tunnel
- Modifying Tunnels to Request FRR Protection
- Modifying Links to Configure Multiple Bypasses (Juniper only)
- Modifying Links to Trigger FRR Backup Tunnel Creation (Cisco)
- FRR Design
- FRR Auto Design
- FRR Tuning
- Viewing Created Backup Tunnels
- Generating LSP Configlets for FRR Backup Tunnels
- Failure Simulation—Testing the FRR Backup Tunnels
- Exhaustive Failure
- Link, Site and Facility Diverse Paths
- play_arrow Cisco Auto-Tunnels
- play_arrow Integrity Check Report
- play_arrow Virtual Local Area Networks
- play_arrow Overhead Calculation
- play_arrow Router Reference
list Table of Contents
Viewing GRE Tunnels
date_range
18-Aug-23
Select Network > Elements > Tunnels... in View or Design mode.
To filter for all GRE tunnels, click the Filter icon and type GRE in the Type field. (Alternatively, filter on “Type=GRE” in the Advanced Filter).
Figure 1: Filtered GRE Tunnels
Select the GRE tunnel to view and then click Show Path to view its path.
Figure 2: GRE Tunnel routed over LSP Tunnel
Note that a tunnel itself can route over a tunnel (in this case, an LSP tunnel). The portion that travels over another tunnel is colored in purple.
