Configure NextHop Reachability Probe
Table of Contents
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- Configure Circuits
- Configure Internet Circuit Underlay Link Aggregation
- Configure Private WAN Underlay Link Quality Aggregation
- Configure Circuit Categories
- Configure Device Initiated Connections for Circuits
- Add Public IP LAN Address to Enterprise Prefixes
- Manage Data Center Clusters
- Configure a Site Prefix
- Configure a DHCP Server
- Configure NTP for Prisma SD-WAN
- Enable IoT Device Visibility in Prisma SD-WAN
- Configure the ION Device at a Branch Site
- Configure the ION Device at a Data Center
- Switch a Site to Control Mode
- Allow IP Addresses in Firewall Configuration
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- Configure a Controller Port
- Configure Internet Ports
- Configure WAN/LAN Ports
- Configure a Loopback Interface
- Prisma SD-WAN Standard VPN
- Configure a PoE Port
- Configure and Monitor LLDP Activity and Status
- Configure a PPPoE Interface
- Configure a Layer 3 LAN Interface
- Configure Application Reachability Probes
- Configure a Secondary IP Address
- Configure a Static ARP
- Configure a DHCP Relay
- Configure IP Directed Broadcast
- VPN Keep-Alives
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- Configure Prisma SD-WAN IPFIX
- Configure IPFIX Profiles and Templates
- Configure and Attach a Collector Context to a Device Interface in IPFIX
- Configure and Attach a Filter Context to a Device Interface in IPFIX
- Configure Global and Local IPFIX Prefixes
- Flow Information Elements
- Options Information Elements
- Configure the DNS Service on the Prisma SD-WAN Interface
- Configure SNMP
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- Prisma SD-WAN Branch Routing
- Prisma SD-WAN Data Center Routing
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- Configure Multicast
- Create a WAN Multicast Configuration Profile
- Assign WAN Multicast Configuration Profiles to Branch Sites
- Configure a Multicast Source at a Branch Site
- Configure Global Multicast Parameters
- Configure a Multicast Static Rendezvous Point (RP)
- Learn Rendezvous Points (RPs) Dynamically
- View LAN Statistics for Multicast
- View WAN Statistics for Multicast
- View IGMP Membership
- View the Multicast Route Table
- View Multicast Flow Statistics
- View Routing Statistics
- Prisma SD-WAN Incident Policies
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- Prisma SD-WAN Branch HA Key Concepts
- Configure Branch HA
- Configure HA Groups
- Add ION Devices to HA Groups
- View Device Configuration of HA Groups
- Edit HA Groups and Group Membership
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- Configure Branch HA with Gen-1 Platforms (2000, 3000, 7000, and 9000)
- Configure Branch HA with Gen-2 Platforms (3200, 5200, and 9200)
- Configure Branch HA with Gen-2 Embedded Switch Platforms (1200-S or 3200-L2)
- Configure Branch HA for Devices with Software Cellular Bypass (1200-S-C-5G)
- Configure Branch HA for Platforms without Bypass Pairs
- Prisma SD-WAN Clarity Reports
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- Native SASE Integration with Prisma SD-WAN
- Connect a Single Prisma SD-WAN Site to Prisma Access
- Connect Multiple Prisma SD-WAN Sites to Prisma Access
- Edit Application Policy Network Rules
- Understand Service and Data Center Groups
- Verify Standard VPN Endpoints
- Configure Standard Groups
- Assign Domains to Sites
- Prisma SD-WAN Incidents and Alerts
Configure NextHop Reachability Probe
Learn how to configure NextHop reachability probes in
Prisma SD-WAN
.The ION device checks if the next hop configured
on the static route is reachable when you enable the
NextHop
Reachability Probe
. To check if the next hop is reachable,
the ION device initiates ICMP probes every second and waits 100
ms for a reply from the next hop. Failure to receive 3 consecutive
ICMP responses causes the device to mark the next hop as unreachable
and the device removes the static route. As a result, the device
forwards traffic to the destination prefix via an alternate path
and does not drop traffic due to an unreachable next hop. The
device decides the number of probes dynamically based on the next
hops. If multiple static routes have the same next hop, then the
device configures only one probe. If there are multiple next hops,
the device configures multiple probes.
Enable the NextHop
Reachability probe when configuring a static route.
- Select.WorkflowsDevicesClaimed DevicesConfigure the deviceRoutingStatic
- You will not be able to enable the Next Hop Reachability probe if:
- The next hop is an interface on the ION device.
- IfSelfisTruefor the next hop.
- If recursive next hop is configured on a data center ION device.
- To check the status of the NextHop Reachability Probe, click the ellipsis menu for a static route and then selectStatus.
View the reachability status of the next hop along with the next hop address on theNexthop Reachability Statusscreen.