Extreme SLX-OS Layer 3 Routing Configuration Guide, 20.5.1
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DHCPv4
> Enable DHCPv4 Relay Agent Option 82
Published April 2023
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Preface
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What‘s New in this Document
Supported Hardware
Address Resolution Protocol
ARP Overview
Change the ARP Aging Timeout for an Interface
Enable ARP Learning
Create a Static ARP Entry for an Interface
Create a Static ARP Entry for a VRF Instance
Proxy ARP
Enable Proxy ARP on an Interface
ARP Poisoning
Create an ARP Access Control List
Dynamic ARP Inspection (DAI)
Guidelines for Implementing ACLs for DAI
Dynamic ARP Inspection and DHCP Snooping
Apply an ARP ACL to a VLAN
Define Trusted and Untrusted Interfaces for DAI
Enable DAI on a VLAN
DAI Show and Clear Commands
ARP Guard
ARP Guard Configuration Guidelines
Apply an ARP ACL to an Interface or Port-channel
Enable ARP Guard on an Interface or Port-channel
Implement Rate Limiting for ARP Guard
ARP Suppression
Suppress ARP on a VLAN
Suppress ARP on a Bridge Domain
ARP Suppression Show and Clear Commands
Conversational ARP
Enable Conversational ARP
ARP Show and Clear Commands
IPv4 Addressing
IPv4 Addressing Overview
ARP Cache
31-bit Subnet Masks on Point-to-Point Networks
IP Parameters and Protocols
IP Global Parameters
IP Interface Parameters
Assign an IP Address to a Loopback Interface
Assign IP Addresses to an Ethernet Interface
Delete an IP Address from an Interface
Enable IP Directed Broadcast on an Interface
Router-ID IP Addresses
Assign a Router-ID IP Address
Domain Name System
Configure a DNS Domain and Gateway Addresses
Source IP address for various packet types
IPv4 Maximum Transmission Unit
IPv4 MTU and Maximum Frame Size
Changing the IPv4 MTU on an Interface
IPv4 ICMP Router Discovery Protocol
IP Addressing Show and Clear Commands
IPv6 Addressing
IPv6 Addressing Overview
Configure Global and Link-local IPv6 Addresses
Assigning IPv6 addresses to interfaces
IPv6 management
IPv6 Management ACLs
Specify an IPv6 SNMP Trap Receiver
Secure Shell and IPv6
IPv6 Telnet
IPv6 Traceroute
IPv6 Neighbor Discovery
Router advertisement and solicitation messages
Configure IPv6 Router Advertisement Preference
Configure Router Advertisement of an IPv6 DNS Server
Configure IPv6 Router Advertisement
Set Managed Address Flags in IPv6 Router Advertisements
Sending or Suppressing IPv6 Router Advertisements Globally
Neighbor redirect messages
Duplicate Address Detection (DAD)
Configure IPv6 Static Neighbor Entries
Configure Reachable Time for Remote IPv6 Nodes
Configure Global IPv6 Neighbor Discovery Cache Limit
Configure IPv6 Neighbor Discovery Cache Limit
IPv6 Neighbor Discovery Suppression
Suppress Neighbor Discovery on a VLAN
Suppress Neighbor Discovery on a Bridge Domain
Neighbor Discovery Suppression Show and Clear Commands
Conversational Neighbor Discovery
Enable Conversational ND
IPv6 Maximum Transmission Unit
Change the IPv6 MTU Value
IPv6 Prefix List
Configure an IPv6 Prefix List
Display Prefix List Information
Display Global IPv6 Information
Clear Global IPv6 Information
Prevention of DDoS attack on IPv6 Subnet-router Anycast Addresses
Drop IPv6 Subnet-router Anycast Address Traffic
IPv4 Static Routing
Overview of IPv4 Static Routing
IPv4 Static Route Availability
IP Source Guard and DHCP Snooping
Configure a Basic IPv4 Static Route
Enable Recursive Lookup for an IPv4 Static Route
Add a Cost Metric or Administrative Distance to an IPv4 Static Route
Configure a Next Hop for an IPv4 Static Route
Configure an IPv4 Static Route to Use with a Route Map
Configure a Null Static Route
Configure an IPv4 Static Route
Configure an IPv4 Static Route Between Two Named VRFs
Configure an IPv4 Static Interface Route Across VRFs
Configure IPv4 Static Routes for Load Sharing and Redundancy
Display IPv4 Static Route Information
Static Prefix Independent Convergence
Configuring Static PIC
IPv6 Static Routing
Overview of IPv6 Static Routing
IPv6 Static Route Availability
Configure a Basic IPv6 Static Route
Enable Recursive Lookup for an IPv6 Static Route
Add a Cost Metric or Administrative Distance to an IPv6 Static Route
Configure a Next Hop for an IPv6 Static Route
Configure an IPv6 Static Route to Use with a Route Map
Configuring a null route
Configure an IPv6 Static Route
Configure IPv6 Static Routes for Load Sharing and Redundancy
Remove an IPv6 Static Route
Remove an IPv6 Static Route in a Non-default VRF
Display IPv6 Static Route Information
Layer 3 Policy-based Routing
Overview of Layer 3 Policy-based Routing
Guidelines for Configuring Policy-based Routing
BFD
Bidirectional Forwarding Detection Overview
General BFD Configuration Considerations
BFD for Layer 3 Protocols
Considerations for Configuring BFD for Layer 3 Protocols
BFD for Layer 3 Protocols on VE Interfaces
Configure BFD Sessions on an Interface
Disable BFD Sessions on an Interface
BFD for BGP
BFD for BGP Session Creation and Deletion
BFD Session Timer Value Selection
Configure BFD Sessions for BGP
Enable BFD Sessions for a BGP Neighbor
Enable BFD Sessions for a BGP Neighbor in a Non-default VRF
Enable BFD Sessions for a BGP Peer Group
BFD for OSPF
BFD for OSPF Session Creation and Deletion
Enable BFD on an OSPFv2-enabled Interface
Configure BFD for OSPFv2 Globally
Configure BFD for OSPFv2 Globally in a Non-default VRF Instance
Enable BFD on an OSPFv3-enabled Interface
Configure BFD for OSPFv3 Globally
Configure BFD for OSPFv3 Globally in a Non-default VRF Instance
BFD for Static Routes
BFD over MCT and VxLAN
BFD for IS-IS
Enable BFD on an IS-IS-enabled Interface
Configure BFD for IS-IS Globally
Display BFD Information
BGP4
BGP4 Overview
BGP4 Peering
BGP4 Message Types
BGP4 parameters
BGP4 Best Path Selection Algorithm
BGP Device ID
Enable BGP4 Globally
Enable BGP4 in a Non-default VRF
Configure a Local AS Number for a BGP4 Device
BGP4 and Address-Family IPv4 Unicast Mode
BGP4 Neighbor Configuration
Configure a BGP4 Neighbor
BGP4 Dynamic Neighbors
Configure BGP4 Dynamic Neighbors
Clear BGP4 Dynamic Neighbors
BGP4 Peer Groups
Create a BGP4 Peer Group
Four-byte AS Numbers for BGP4
Enable ASN Capability Globally for BGP4
Enable ASN Capability for a BGP4 Neighbor
Redistribute Routes into BGP4
Import Routes into BGP4
Static BGP4 Networks
Configure a Static BGP4 Network
BGP4 Route Reflection
Configure a Cluster ID for a BGP4 Route Reflector
Configure a BGP4 Route-Reflector Client
Aggregate the Routes to Advertise to BGP4 Neighbors
Advertise the Default BGP4 Route
Advertise the Default BGP4 Route to a Specific Neighbor
Use the Default BGP4 Route as a Valid Next Hop
BGP4 Multipath for Load Balancing
Enable Load Balancing Across Different BGP4 Paths
Change the Weight Added to Received BGP4 Routes
Next-hop Recursion for BGP4
Enable Next-hop Recursion for BGP4
BGP4 Route Filters
BGP4 Regular Expression Pattern-matching
BGP4 Outbound Route Filtering
Configure BGP4 Outbound Route Filtering
Cooperative BGP4 Route Filtering
Enable BGP4 Cooperative Route Filtering
BGP4 Route Maps
Configure BGP4 Route Map Matching on an AS-path
Configure BGP4 Route Matching on a Community ACL
Configure BGP4 Route Map Matching on a Destination Network
Configure BGP4 Route Map Matching on a Static Network
Configure BGP4 Route Map Matching on a Next-hop Device
Configure BGP4 Route Map Matching on an Interface
Setting a BGP4 route MED to equal the next-hop route IGP metric
Route Map Continue Statement for BGP4 Routes
Use Route-map Continue Statements
BGP4 Confederations
Configure a BGP4 Confederation
BGP community and extended community
Define a BGP4 Extended Community Filter
Apply a BGP4 Extended Community Filter
BGP Large Communities
BGP Large Community configuration examples
BGP Flowspec
Distribution of Flowspec Rules by BGP
BGP Flowspec Traffic Filtering Actions
BGP Flowspec Considerations
Workflow for Configuring BGP Flowspec
Duplicate Stanzas in a BGP Flowspec Route Map
Enable the Border-Routing TCAM Profile
Configure BGP Flowspec Rules
Enable the BGP Flowspec Address Family and Activate Neighbors
Distribute BGP Flowspec Rules
Update a Previously Distributed Route Map
Enabling statistics for BGP flowspec rules
Displaying and clearing statistics for IPv4 flowspec rules
BGP4 Graceful Restart
Configuring BGP4 Graceful Restart
Configuring BGP4 Graceful Restart per Neighbor
BGP4 Graceful Shutdown
Configuring graceful shutdown for all BGP4 neighbors
Configuring graceful shutdown for a BGP4 peer group
Configuring graceful shutdown for a specific BGP4 neighbor
Auto shutdown of BGP neighbors on initial configuration
Configure Auto Shutdown of BGP Neighbors on Initial Configuration
Disable the BGP4 Peer Shutdown State
BGP Additional-paths
Configuring BGP additional-paths and additional-path selection at address-family level
Configuring BGP additional-paths and additional-path advertisement at neighbor level
Configuring additional-paths and advertisement of additional-paths at peer group level
Filtering additional-paths advertised at route-map level
Disable BGP Additional-paths for a Neighbor
BGP Best-External Route
Configuring BGP best-external route at address-family level
Generalized TTL Security Mechanism
Configure GTSM for BGP4
Disabling the BGP AS_PATH check function
BGP4 Route Flap Dampening
Enable BGP4 Route Dampening
Configure the BGP4 Route Dampening Penalty with a Route Map
Reactivate Dampened BGP4 Routes
BGP4 Diagnostic Buffers
Display BGP4 Statistics
Display BGP4 Neighbor Statistics
BGP PIC
BGP PIC functional scenarios
BGP PIC Considerations
Enable BGP PIC
BGP Fast Convergence with Delayed Route Calculation
Configure BGP Delayed Route Calculation
BGP Resource Public Key Infrastructure (RPKI)
Connecting to RPKI Servers
Create RPKI Priority
RPKI Server Connection Parameters
Connect Using SSH
Connect Using TCP
Making Routing Decisions
Configure BGP4 Route Map Matching on a RPKI prefix state
Other Configurations
Enable or Disable Prefix Validation for Best Path Calculations
Prevent Invalid Prefixes from being used for best path calculation
Announce BGP Prefixes to iBGP Peers
Routing and Filtering Behavior
BGP4+
BGP4+ Overview
BGP global mode
IPv6 unicast address family
Configure a BGP4+ Neighbor with a Global IPv6 Address
Configure a BGP4+ Neighbor with a Link-local Address
BGP4+ Peer Groups
Create a BGP4+ Peer Group
Create a BGP Peer Group with IPv4 and IPv6 Peers
BGP4+ Dynamic Neighbors
Configure BGP4 Dynamic Neighbors
Clear BGP4+ Dynamic Neighbors
Enable ASN Capability Globally for BGP4
Enabling ASN capability for a BGP4+ neighbor
Importing routes into BGP4+
Advertising the default BGP4+ route
Advertising the default BGP4+ route to a specific neighbor
Redistribute Routes into BGP4+
Configure the IPv6 Default Route as a Valid BGP4+ Next Hop
BGP4+ Recursive Next-Hop Lookups
Enable BGP4+ Recursive Next-hop Lookups
BGP4+ Multiprotocol Extensions for NLRI
BGP4+ Route Reflection
Configure a Cluster ID for a BGP4+ Route Reflector
Configure a BGP4+ Route-Reflector Client
Aggregate the Routes to Advertise to BGP4+ Neighbors
BGP4+ Multipath for Load Balancing
Enable Load Balancing Across Different BGP4+ Paths
BGP4+ Route Maps
Configure a Route Map for BGP4+ Prefixes
Change the Weight Added to Receive BGP4+ Routes
Enable BGP4+ in a Non-default VRF
BGP4+ outbound route filtering
Configure BGP4+ Outbound Route Filtering
BGP4+ confederations
Configure a BGP4+ Confederation
BGP4+ extended community
Define a BGP4+ Extended Community
Apply a BGP4+ Extended Community Filter
BGP4+ Graceful Restart
Configuring BGP4+ Graceful Restart per Neighbor
Disabling Graceful Restart per neighbor
Auto shutdown of BGP neighbors on initial configuration
Configure Auto Shutdown of BGP Neighbors on Initial Configuration
Disabling the BGP4+ peer shutdown state
Configure GTSM for BGP4+
Disable the BGP4+ AS_PATH Check Function
Displaying BGP4+ statistics
Displaying BGP4+ neighbor statistics
Clearing BGP4+ dampened paths
Dampening BGP Peer Flap
Configuring BGP Peer Flap Dampening
BGP EVPN for IP Fabrics
BGP EVPN Overview
BGP EVPN Control Plane
BGP EVPN configuration examples
BGP EVPN neighbor examples
BGP EVPN instance configuration
BGP Dynamic Neighbors for an IP Fabric
Configuring BGP dynamic neighbors for an IP Fabric
BGP routing tables
BGP EVPN-based MCT Cluster Formation
BGP EVPN-based VxLAN Overlay
EVPN next-hop resolution and tunnel-EVI membership
Layer 2 (MAC) route exchange
ARP and ND (MACIP) Route Exchange
EVPN prefix route exchange and Multi-VRF support
BGP EVPN VxLAN data center interconnect
Layer 2 and Layer 3 control-plane Extension
Layer 2 handoff
Layer 3 handoff
EVPN Layer 3 interconnect
BGP Unified Routing (EVPN-VPNv4/VPNv6 Interconnect)
Configuring Unified Routing
Static Anycast Gateway
IP unnumbered interface
High availability
BGP EVPN Multi-homing
BGP EVPN Multi-homing
Ethernet Segment Formation
Ethernet Segment Identifier
Manually Assigning ESI
ESI assignment for LACP ports
ES Import RT
Designated Forwarder Election
Local Bias
Split Horizon
Aliasing
Mass Withdrawal
Core Isolation Disable
Core Isolation Tracking
Configuring BGP EVPN Multi-homing
Configuring EVPN Mulit-homing on the Leaf
DHCPv4
DHCPv4 Overview
DHCPv4 Relay Overview
Configure the DHCPv4 Relay
DHCPv4 Relay Supported Scenarios
DHCPv4 Snooping
DHCPv4 Relay Agent Option 82
Enable DHCPv4 Relay Agent Option 82
Configure the DHCPv4 Relay Gateway Address
VRF Support in DHCPv4
Display DHCPv4 Relay Information
Clear DHCPv4 Relay Statistics
DHCPv6
DHCPv6 Overview
DHCPv6 Relay Agent
DHCPv6 Multicast Addresses and UDP Ports
DHCPv6 Address Assignment
DHCPv6 Message Format
Configure DHCPv6 Relay
Display DHCPv6 Relay Information
Clear DHCPv6 Relay Statistics
Generic Routing Encapsulation
GRE tunnels
GRE Configuration Considerations
Configuring a Tunnel
Binding a tunnel to a VE interface
Enabling tunnel statistics
Configuring GRE tunnel keepalive
Configuring DSCP for the GRE tunnel
Configure MTU
Displaying tunnel statistics
Clearing tunnel statistics
IS-IS (IPv4)
IS-IS overview
Relationship to the IP route table
Intermediate systems and end systems
Domain and areas
Level-1 routing and Level-2 routing
Neighbors and adjacencies
Designated IS
Broadcast pseudonode
Route calculation and selection
Three-way handshake for point-to-point adjacencies
IS-IS CLI levels
Enabling IS-IS globally
Configuring the IS-IS IPv4 unicast address family
Overload bit
Setting the overload bit
Authentication
Configuring authentication
Changing the IS-IS level globally
Logging adjacency changes
Complete Sequence Numbers PDU interval
Configuring the CSNP interval
Changing the maximum LSP lifetime
Changing the LSP refresh interval
Changing the LSP generation interval
Changing the LSP interval and retransmit interval
Disabling IS-IS name mapping capability
Logging invalid LSP packets received
Changing the SPF timer
Configuring the IS-IS flooding mechanism
Configuring IS-IS PSPF exponential back-off
Hello padding
Disabling hello padding globally
Partial SPF optimizations
Disabling partial SPF optimizations
Incremental SPF optimizations
Disabling incremental shortcut SPF optimizations
IS-IS incremental shortcut LSP SPF optimization
Disabling incremental SPF optimizations
Maximum number of load sharing paths
Changing the maximum number of load sharing paths
Default route advertisement
Enabling advertisement of a default route
Using a route map to advertise a default route
IS-IS administrative distance
Changing the administrative distance for IPv4 IS-IS
Configuring summary addresses
IPv4 IS-IS route redistribution
Redistributing routes into IPv4 IS-IS
Default redistribution metric
Changing the default redistribution metric
Configuring the default link metric value globally
IS-IS metric styles
Changing the metric style
Enabling IS-IS for an Interface
Configuring authentication on an IS-IS interface
Disabling hello padding for an IS-IS interface
Changing the IS-IS level on an IS-IS interface
Changing the hello multiplier for an IS-IS interface
Changing the hello interval for an IS-IS interface
DIS Hello Interval
IS-IS Point-to-Point over Ethernet
Enabling IS-IS point-to-point over Ethernet
Displaying IS-IS statistics
IS-IS (IPv6)
IPv6 IS-IS single-topology mode
IS-IS CLI levels
Enabling IPv6 IS-IS globally
Configuring the IS-IS IPv6 unicast address family
Configuring IPv6 IS-IS single topology
Setting the overload bit
Configuring authentication
Changing the IS-IS level globally
Logging adjacency changes
Configuring the CSNP interval
Changing the maximum LSP lifetime
Changing the LSP refresh interval
Changing the LSP generation interval
Changing the LSP interval and retransmit interval
Disabling IS-IS name mapping capability
Logging invalid LSP packets received
Changing the SPF timer
Configuring the IS-IS flooding mechanism
Configuring IS-IS PSPF exponential back-off
Disabling hello padding globally
Disabling partial SPF optimizations
Disabling incremental SPF optimizations
Disabling incremental shortcut SPF optimizations
Maximum number of load sharing paths
Changing the maximum number of load sharing paths
Default route advertisement
Enabling advertisement of a default route
Using a route map to advertise a default route
IPv6 IS-IS administrative distance
Changing the administrative distance for IPv6 IS-IS
Configuring summary prefixes
Redistributing routes into IPv6 IS-IS
Redistributing routes into IPv6 IS-IS
Default redistribution metric
Changing the default redistribution metric
Configuring the default link metric value globally
IPv6 metric behavior with multi-topology configuration
IS-IS metric styles
IPv6 protocol-support consistency checks
Enabling IS-IS and assigning an IPv6 address to an interface
Configuring authentication on an IS-IS interface
Disabling hello padding for an IS-IS interface
Changing the IS-IS level on an IS-IS interface
Changing the hello multiplier for an IS-IS interface
Changing the hello interval for an IS-IS interface
Changing the metric added to advertised routes for an IS-IS interface
Disabling IPv6 protocol-support consistency checks
IPv6 IS-IS Multi-Topology
Configuration considerations for IPv6 IS-IS MT
Migrating to IPv6 IS-IS MT
Maintaining MT adjacencies
Forming adjacencies on the point-to-point interfaces
Forming adjacencies on the broadcast interfaces
New TLV attributes
Enabling IPv6 IS-IS MT
Configuration example to deploy IPv6 IS-IS MT
Configuration commands to enable IPv6 IS-IS MT on device D1
Configuration commands to enable IPv6 IS-IS MT on device D2
Configuration commands to enable IPv6 IS-IS MT on device E2
Configuration commands to enable IPv6 IS-IS MT on device C2
Displaying IS-IS statistics
Multi-VRF
Multi-VRF Overview
Configuring Multi-VRF
Configuring a VRF instance
Starting a routing process for a VRF
Assigning a Layer 3 interface to a VRF
Assigning a loopback interface to a VRF
Verifying a Multi-VRF configuration
Removing a VRF configuration
Configuring the maximum number of routes
Multi-VRF configuration example
Multi-VRF with eBGP and OSPF: Configuring PE1
Multi-VRF with eBGP and OSPF: Configuring PE2
Multi-VRF with eBGP and OSPF: Configuring CE1 and CE2
Multi-VRF with eBGP and OSPF: Configuring CE3 and CE4
Inter-VRF Route Leaking
Configuring static inter-VRF route leaking
Example of Static Inter-VRF Route Leaking
Inter-VRF route leaking and DHCP relay
Configuring dynamic inter-VRF route leaking
Example of Dynamic Inter-VRF route leaking
Commands for dynamic inter-VRF route leaking
Internet Route Scaling
Configure the Profile Route
OSPFv2
OSPFv2 overview
Autonomous System
OSPFv2 components and roles
Enabling OSPFv2
Backbone area
Assigning OSPFv2 areas
Area range
Assigning an area range
Area types
Stub area and totally stubby area
Disabling summary LSAs for a stub area
Not-so-stubby area (NSSA)
Configuring an NSSA
Configuring a summary-address for the NSSA
Assigning interfaces to an area
Link state advertisements
Configuring an MD5 password and authentication change hold time for an OSPFv2 interface
Virtual links
Configuring virtual links
Default route origination
External route summarization
Modifying Shortest Path First timers
OSPFv2 administrative distance
OSPFv2 LSA refreshes
Configuring the OSPFv2 LSA pacing interval
OSPFv2 Graceful Restart
Disabling OSPFv2 graceful restart
Re-enabling OSPFv2 graceful restart
Disabling OSPFv2 graceful restart helper
OSPFv2 Non-stop Routing
Enabling OSPFv2 NSR
Redistributing routes into OSPFv2
OSPFv2 type 3 LSA filtering
Configuring OSPFv2 type 3 LSA filtering
OSPFv2 over VRF
Enabling OSPFv2 in a non-default VRF
Configuring the OSPFv2 Max-Metric Router LSA
Re-enabling OSPFv2 compatibility with RFC 1583
Changing default settings
Disabling and re-enabling OSPFv2 event logging
Understanding the effects of disabling OSPFv2
Disabling OSPFv2
Displaying OSPFv2 results
Supported scale for OSPFv2 and performance considerations
Setting DN bit during MP-BGP redistribution into OSPF
OSPFv3
OSPFv3 overview
Configuring the router ID
Enabling OSPFv3
Configuring OSPFv3
OSPFv3 areas
Backbone area
Area range
Area types
Assigning OSPFv3 areas
Assigning OSPFv3 areas to interfaces
Stub area and totally stubby area
Configuring a stub area
Not-so-stubby area
Configuring an NSSA
LSA types for OSPFv3
Virtual links
Virtual link source address assignment
Configuring virtual links
OSPFv3 route redistribution
Redistributing routes into OSPFv3
Default route origination
Configuring default external routes
Disabling and re-enabling OSPFv3 event logging
Filtering OSPFv3 routes
SPF timers
Modifying SPF timers
OSPFv3 administrative distance
Configuring administrative distance based on route type
Changing the reference bandwidth for the cost on OSPFv3 interfaces
OSPFv3 LSA refreshes
Configuring the OSPFv3 LSA pacing interval
External route summarization
OSPFv3 over VRF
Enabling OSPFv3 in a non-default VRF
Setting all OSPFv3 interfaces to the passive state
OSPFv3 Graceful Restart
Configure OSPFv3 Graceful Restart
OSPFv3 graceful restart helper
Configure OSPFv3 Graceful Restart Helper
Disabling OSPFv3 graceful restart helper
Re-enabling OSPFv3 graceful restart helper
OSPFv3 Non-stop Routing
Enabling OSPFv3 NSR
OSPFv3 max-metric router LSA
Configuring the OSPFv3 max-metric router LSA
IPsec for OSPFv3
IPsec for OSPFv3 configuration
Configuring IPsec on an OSPFv3 area
Configuring IPsec on an OSPFv3 interface
Configuring IPsec on OSPFv3 virtual links
Specifying the key rollover and key add-remove timers
Displaying OSPFv3 results
Supported scale for OSPFv3 and performance considerations
Setting DN bit during MP-BGP redistribution into OSPF
VRRPv2
VRRPv2 overview
VRRP terminology
SLX-OS VRRP MAC Address Support
SLX-OS VRRP and VRRP-E interoperability
VRRP hold timer
VRRP interval timers
VRRP authentication
ARP and VRRP control packets
Enabling a master VRRP device
Enabling a backup VRRP device
VRRP multigroup clusters
Configuring multigroup VRRP routing
Tracked ports and track priority with VRRP and VRRP-E
Configuring VRRP port tracking
VRRP backup preemption
Enabling VRRP backup preemption
Accept mode for backup VRRP devices
Disabling accept mode on a backup VRRP device
Virtual router MAC address
Configure Unique Virtual MAC Addresses per VRID
VRRP-Ev2 overview
Enabling a VRRP-E device
Configuring MD5 authentication on IPv4 VRRP-E interfaces
Track routes and track priority with VRRP-E
Configuring VRRP-E route tracking
VRRP-E load-balancing using short-path forwarding
Short-path forwarding with revert priority
Configuring VRRP-E load-balancing using short-path forwarding
Displaying VRRPv2 information
Clearing VRRPv2 statistics
VRRPv3
VRRPv3 overview
Enabling IPv6 VRRPv3
Enabling IPv4 VRRPv3
Tracked ports and track priority with VRRP and VRRP-E
Port tracking using IPv6 VRRPv3
VRRP hold timer
Configuring VRRP hold timer support
Accept mode for backup VRRP devices
Disabling accept mode on a backup VRRP device
Alternate VRRPv2 checksum for VRRPv3 IPv4 sessions
Enabling the v2 checksum computation method in a VRRPv3 IPv4 session
VRRPv3 router advertisement suppression
Disabling VRRPv3 router advertisements
Displaying VRRPv3 statistics
Clearing VRRPv3 statistics
VRRP-Ev3 Overview
Enabling IPv6 VRRP-Ev3
Configuring MD5 authentication on IPv6 VRRP-Ev3 interfaces
VRRP-E load-balancing using short-path forwarding
Short-path forwarding with revert priority
Configuring VRRP-Ev3 load-balancing
Displaying and clearing VRRP-Ev3 statistics
VxLAN Layer 3 Gateway
VxLAN Layer 3 Gateway Overview
Single-VTEP static VLAN/VxLAN-VE Layer 3 gateway
Single-VTEP static BD/VxLAN-VE
EVPN-based VxLAN Layer 3 gateway
EVPN-based VxLAN Layer 3 gateway on LVTEP
Configuring VxLAN Layer 3 gateway
Configure the TCAM Profile for Layer 3 Gateway
Configuring a single-VTEP static VLAN/VE Layer 3 gateway
Configuring a single-VTEP static BD/VE Layer 3 gateway
Configuring an EVPN Layer 3 gateway for MAC IP routes
Configuring an EVPN Layer 3 VNI
Configuring an EVPN LVTEP for MAC IP routes
Configuring an EVPN Layer 3 VNI for LVTEP
Example show and clear commands for VxLAN Layer 3 gateway
QoS for VxLAN Layer 2 and Layer 3 Gateway Interconnections
QoS for VxLAN Layer 3 Gateways
Local Bias for LVTEP
Configuring Local Bias for LVTEP
Resilient Hashing
Introduction
How Resilient Hashing Works
Configuring Resilient Hashing for Default VRF
Configuring Resilient Hashing for User Created VRF
Enable DHCPv4 Relay Agent Option 82
For more information, see
DHCPv4 Relay Agent Option 82
.
Access global configuration mode.
device# configure
Enable option 82.
device(config)# ip dhcp relay information option
