SEFOS BFD Administration Guide · BFD Bidirectional Forwarding Detection CC Continuity check CV...
Transcript of SEFOS BFD Administration Guide · BFD Bidirectional Forwarding Detection CC Continuity check CV...
Sun Ethernet Fabric Operating System BFD Administration Guide
Part No: E60921-02
July 2015
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Contents
Using This Documentation .............................................................................................................. 5
BFD Overview ................................................................................................................................... 9
BFD Protocol Description .............................................................................................. 9
Default Configurations ................................................................................................... 9
BFD Topology Example ............................................................................................... 10
Configuring BFD ............................................................................................................................. 11
Configure SEFOS1 in Topology for Testing Oracle BFD ............................................. 11
Configure SEFOS2 in Topology for Testing Oracle BFD ............................................. 13
Configure SEFOS3 in Topology for Testing Aricent BFD ............................................. 15
BFD Over Static IP Path Configuration ....................................................................... 17
BFD Over Static IPv6 Path Configuration ................................................................... 17
BFD Over OSPF Configuration ................................................................................... 18
BFD Over OSPFv3 Configuration ................................................................................ 18
BFD Monitoring for BGP Configuration ....................................................................... 18
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Using This Documentation
Overview – Includes the description of BFD protocol and instructions to configure it
Audience – Users implementing BFD protocol with other protocols in the router stack
Required knowledge – Working knowledge of the protocol
Product Documentation Library
Documentation and resources for this product and related products are available at http://www.oracle.com/goto/es2-72_es2-64/docs.
Acronyms and Abbreviations
Terms Explanation
Active Conceptual row is available for use by the managed device.
CreateAndGo A management station wanting to create a new instance of a conceptual row and to have its
status automatically set to active, making it available for use by the managed device,
supplies this row status value.
CreateAndWait A management station wanting to create a new instance of conceptual row (but not making it
available for use by the managed device) supplies this rowstatus value.
Destroy A management station wishing to delete all of the instances associated with an existing
conceptual row supplies this rowstatus value.
NotInService Conceptual row exists in the agent, but is unavailable for use by the managed device.
NotReady Conceptual row exists in the agent, but some more information is necessary to make it
available for use by the managed device.
BFD Bidirectional Forwarding Detection
CC Continuity check
CV Connection verification
FRR Fast-Re-Route
GACH Generic associated channel header
GAL Generalized alert label
LER Label edge router
LSP Label switched path
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Terms Explanation
LSR Label switch router
ME Maintenance entity
MEG Maintenance entity group
MEP Maintenance entity group end point
MIP Maintenance entity group intermediate point
MPLS-OAM MPLS operations, administration, and maintenance
MPLS-TP MPLS transport profile
MPLS-TP LSP Unidirectional or bidirectional label switched path
OID Object identifier
OSPF Open shortest path first
P2P Point-to-point
PDU Packet data unit
PW Pseudowire
RDI Remote defect indication
SLA Service level agreement
SPME Subpath maintenance element
TTL Time to live
VCCV Virtual circuit connectivity verification
CLI Command Modes
This table lists the various command modes used in this document with their access and exit methods.
Command Mode Access Method Prompt Exit Method
User EXEC Initial mode for starting a
session.
SEFOS> Use the logout command to
return to the Oracle ILOM
prompt.
Privileged EXEC From User EXEC mode, use
the enable command.
SEFOS# Use the disable command to
return to the User EXEC mode.
Global Configuration From Privileged EXEC
mode, use the configure
terminal command.
SEFOS(config)# Use the exit or end command
to exit to the Privileged EXEC
mode.
Interface Configuration From Global Configuration SEFOS(config- Use the exit command to
Using This Documentation 7
Command Mode Access Method Prompt Exit Method
mode, use the
interface-type
interface-id command.
if)# return to Global Configuration
mode, or use the end command
to return to Privileged EXEC
mode.
Switch Configuration From Global Configuration
mode, use the switch
switch-name command.
SEFOS(config-
switch)# Use the exit command to
return to Global Configuration
mode, or use the end command
to return to Privileged EXEC
mode.
BFD Session
Configuration
From Global Configuration
mode, use the bfd
session session-index
command.
SEFOS(config-
bfdsess)# Use the exit command to
return to Global Configuration
mode, or use the end command
to return to Privileged EXEC
mode.
Feedback
Provide feedback about this documentation at http://www.oracle.com/goto/docfeedback.
8 Sun Ethernet Fabric Operating System BFD Administration Guide July 2015
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BFD Overview
BFD Protocol Description
Oracle BFD implements the Bidirectional Forwarding Detection described in the RFC 5880. BFD is a detection protocol designed to provide fast forwarding-path failure detection times for media types, encapsulations, topologies, and routing protocols. BFD detects forwarding path failures at a uniform rate, rather than the variable rates for different protocol hello mechanisms. BFD makes network profiling and planning easier and reconvergence time consistent and predictable. BFD provides subsecond failure detection between two adjacent devices and can be less CPU-intensive than protocol hello messages, because some of the BFD load can be distributed to the data plane on supported modules.
Oracle BFD supports path monitoring for the following protocols:
Static IPv4 & IPv6
BGP
OSPF
MPLS
Linux IP support for BFD is provided and the configurations are same as mentioned in this document. The supported protocols for BFD in Linux IP are static route, OSPF, and BGP in IPv4, and static route and BGP in IPv6. This document describes how to configure Oracle BFD running as a part of Sun Ethernet Fabric Operating System (SEFOS).
BFD is configurable and managed by CLI. For more information about the command modes of CLI, see CLI Command Modes.
Default Configurations
The following table lists the default values assigned to several BFD parameters, during the start-up of the router.
Parameter Default Setting
BFD Administrative System Control Status Start
BFD Global Operational Mode Asynchronous mode without echo function.
BFD Global Minimum Transmit Interval 1 second
BFD Global Minimum Reception Interval 1 second
BFD Global Detection Time Multiplier 3 seconds
BFD Global Slow Transmission Interval 1 second
BFD Session Role Active
BFD Session Mode CC (Continuity Check)
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Parameter Default Setting
BFD Session Timer Negotiation Enabled
BFD Session Offloading Disabled
BFD Trap Notifications Session UP and DOWN notifications enabled
BFD Session Admin Status Enabled
BFD Version Number BFD Version 1 (RFC5880)
BFD Session State DOWN
BFD Demand Mode Disabled
BFD Control Plane Independency Disabled
BFD Generalized TTL Security Mechanism (GTSM) Disabled
BFD Session Authentication Disabled
BFD Topology Example
The following figure is an example of BFD configuration.
The figure depicts the components used in the topology, which are described as follows:
R1, R2, and R3 represent routers in which SEFOS is installed.
VLAN2 and VLAN3 represent the VLAN interfaces of the SEFOS routers.
Each SEFOS switch has a router ID.
This table lists the IPv4 and IPv6 addresses of the interfaces and hosts provided in the figure.
Router /
Host
Interface Slot IPv4 Address / Mask IPv6 Address / Prefix Length
R1 VLAN2 0/2 20.0.0.1 / 255.0.0.0 fec0::2222:0:1 / 96, 2222::1/96
R2 VLAN2 0/2 20.0.0.2 / 255.0.0.0 fec0::2222:0:2 / 96, 2222::2/96
VLAN3 0/3 30.0.0.2 / 255.0.0.0 fec0::3333:0:2 / 96, 3333::2/96
R3 VLAN3 0/2 30.0.0.3 / 255.0.0.0 fec0::3333:0:3 / 96, 3333::3/96
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Configuring BFD
The Oracle BFD software is designed in accordance with the FSAP2 (Flexible Software Architecture for Portability) to ensure a high level of portability
This chapter describes the preliminary configurations and the configurations for the topologies of Oracle BFD. You can configure the Oracle BFD feature by accessing Global Configuration mode or Interface Configuration mode. The configuration steps described in this document begin with accessing one or both of these modes.
This chapter describes the configuration of the Oracle BFD features using CLI.
Configuring BFD over Static IPv4 & IPv6 paths
Configuring BFD over OSPF
Configuring BFD over BGP
Configure SEFOS1 in Topology for Testing Oracle
BFD
The figure in the BFD Topology Example depicts the topology setup for this configuration.
Note: For the enterprise package, ports are automatically mapped to default switch.
1. Type the following commands to configure SEFOS1 in Topology for Testing Oracle BFD.
SEFOS# configure terminal
SEFOS(config)# interface vlan 1
SEFOS(config-if)# shutdown
SEFOS(config-if)# ip address 12.0.0.1 255.0.0.0
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/1
SEFOS(config-if)# map switch default
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config-switch)# vlan 1
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SEFOS(config-switch-vlan)# ports extreme-ethernet 0/1
SEFOS(config-switch-vlan)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/1
SEFOS(config-if)# switchport pvid 1
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface vlan 2
SEFOS(config-if)# shutdown
SEFOS(config-if)# ip address 20.0.0.1 255.0.0.0
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/2
SEFOS(config-if)# map switch default
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config-switch)# vlan 2
SEFOS(config-switch-vlan)# ports extreme-ethernet 0/2
SEFOS(config-switch-vlan)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/2
SEFOS(config-if)# switchport pvid 2
SEFOS(config-if)# end
2. Verify the VLAN configurations.
SEFOS# show ip interface
Vlan1 is up, line protocol is up
Configuring BFD 13
Internet Address is 12.0.0.1/8
Broadcast Address 12.255.255.255
Vlan2 is up, line protocol is up
Internet Address is 20.0.0.1/8
Broadcast Address 20.255.255.255
Configure SEFOS2 in Topology for Testing Oracle
BFD
The figure in the BFD Topology Example depicts the topology setup for this configuration.
1. Type the following commands to configure SEFOS2 in BFD Topology Example.
SEFOS# configure terminal
SEFOS(config)# interface vlan 1
SEFOS(config-if)# shutdown
SEFOS(config-if)# ip address 12.0.0.2 255.0.0.0
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/1
SEFOS(config-if)# map switch default
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config-switch)# vlan 1
SEFOS(config-switch-vlan)# ports extreme-ethernet 0/1
SEFOS(config-switch-vlan)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/1
SEFOS(config-if)# switchport pvid 1
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SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface vlan 2
SEFOS(config-if)# shutdown
SEFOS(config-if)# ip address 20.0.0.2 255.0.0.0
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/2
SEFOS(config-if)# map switch default
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config-switch)# vlan 2
SEFOS(config-switch-vlan)# ports extreme-ethernet 0/2
SEFOS(config-switch-vlan)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/2
SEFOS(config-if)# switchport pvid 2
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface vlan 3
SEFOS(config-if)# shutdown
SEFOS(config-if)# ip address 30.0.0.2 255.0.0.0
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
Configuring BFD 15
SEFOS(config)# interface extreme-ethernet 0/3
SEFOS(config-if)# map switch default
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config-switch)# vlan 3
SEFOS(config-switch-vlan)# ports extreme-ethernet 0/3
SEFOS(config-switch-vlan)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/3
SEFOS(config-if)# switchport pvid 3
SEFOS(config-if)# end
2. Verify the VLAN configurations.
SEFOS# show ip interface
Vlan1 is up, line protocol is up
Internet Address is 12.0.0.2/8
Broadcast Address 12.255.255.255
Vlan2 is up, line protocol is up
Internet Address is 20.0.0.2/8
Broadcast Address 20.255.255.255
Vlan3 is up, line protocol is up
Internet Address is 30.0.0.2/8
Broadcast Address 30.255.255.255
Configure SEFOS3 in Topology for Testing Aricent
BFD
The figure in the BFD Topology Example depicts the topology setup for this configuration.
1. Type the following commands to configure SEFOS3 in topology for testing Oracle BFD.
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SEFOS# configure terminal
SEFOS(config)# interface vlan 1
SEFOS(config-if)# shutdown
SEFOS(config-if)# ip address 12.0.0.3 255.0.0.0
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/1
SEFOS(config-if)# map switch default
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config-switch)# vlan 1
SEFOS(config-switch-vlan)# ports extreme-ethernet 0/1
SEFOS(config-switch-vlan)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/1
SEFOS(config-if)# switchport pvid 1
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface vlan 3
SEFOS(config-if)# shutdown
SEFOS(config-if)# ip address 30.0.0.3 255.0.0.0
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/2
SEFOS(config-if)# map switch default
Configuring BFD 17
SEFOS(config-if)# no shutdown
SEFOS(config-if)# end
SEFOS# configure terminal
SEFOS(config-switch)# vlan 3
SEFOS(config-switch-vlan)# ports extreme-ethernet 0/2
SEFOS(config-switch-vlan)# end
SEFOS# configure terminal
SEFOS(config)# interface extreme-ethernet 0/2
SEFOS(config-if)# switchport pvid 3
SEFOS(config-if)# end
2. Verify the VLAN configurations.
SEFOS# show ip interface
Vlan1 is up, line protocol is up
Internet Address is 12.0.0.3/8
Broadcast Address 12.255.255.255
Vlan3 is up, line protocol is up
Internet Address is 30.0.0.3/8
Broadcast Address 30.255.255.255
BFD Over Static IP Path Configuration
This feature enables you to monitor IP neighbor reachability by using BFD. You can configure the neighbor statically. IP moves static routes (with next hop as neighbor) to pending state when BFD notifies that the neighbor is not reachable.
BFD Over Static IPv6 Path Configuration
This feature enables you to monitor IPv6 neighbor reachability using BFD. You can configure the neighbor statically. IPv6 moves static routes (with next hop as neighbor) to pending state when BFD notifies the neighbor is not reachable. Refer to the Sun Ethernet Fabric Operating System IPv6 Administration Guide for static configurations.
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BFD Over OSPF Configuration
This feature enables OSPF to detect its neighbor unreachable faster. BFD reports neighbor unreachable to OSPF as soon as it detects BFD packet failure. This speeds up convergence.
BFD Over OSPFv3 Configuration
This feature enables OSPFv3 to detect its IPv6 neighbor unreachable faster. BFD reports neighbor unreachable to OSPFv3 as soon as it detects BFD packet failure. This speeds up convergence. Refer to the Sun Ethernet Fabric Operating System OSPFv3 Administration Guide for detailed configuration.
BFD Monitoring for BGP Configuration
This feature enables BGP to detect its IPv4 and IPv6 remote neighbor unreachable faster. BFD reports neighbor unreachable to BGP as soon as it detects BFD packet failure. This speeds up convergence. Refer to the Sun Ethernet Fabric Operating System BGP administration Guide for detailed configuration.