junos 归档 - 第7页 共8页 - 夜莺博客

标签：junos

Junos ISIS Flap Case Study: Hello Padding and Fragmentation

Junos ISIS Flap Case Study: Hello Padding and Fragmentation

A Junos ISIS flap case study: MX adjacencies aged out from Cisco hello padding and PFE-to-RE fragmentation, fixed with the new ip-reassembly-timeout c

admin admin 2026-08-28
0 0 0
Junos Interface Flapping: Hold-Time and Damping Configuration

Junos Interface Flapping: Hold-Time and Damping Configuration

Stop Junos interface flapping from churning IS-IS, OSPF and BGP: static hold-time timers, exponential damping parameters and MX PFE hardware fault han

admin admin 2026-08-28
0 0 0
Junos Troubleshooting: A LAN Where Static Hosts Never Answer

Junos Troubleshooting: A LAN Where Static Hosts Never Answer

A real-world Junos debugging story: an SRX sees hosts in the ethernet-switching table but not in ARP. Follow the hunt through irb and routing-instance

admin admin 2026-08-27
0 0 0
Junos EX: How to Identify a Flapped Interface with CLI Commands

Junos EX: How to Identify a Flapped Interface with CLI Commands

Identify a flapped interface on a Juniper EX switch: read the Last flapped field, correlate mib2d log entries and verify flap timestamps against uptim

admin admin 2026-08-27
0 0 0
Junos Interface Damping: Hold-Time and Backoff

Junos Interface Damping: Hold-Time and Backoff

Junos interface damping: hold-time timers for millisecond flaps vs exponential backoff damping for second-scale flaps, with penalty math and checks.

admin admin 2026-08-26
0 0 0
Juniper MX Resolve Hardware Issues: Damping and Hold-Time Guide

Juniper MX Resolve Hardware Issues: Damping and Hold-Time Guide

Juniper MX 路由器接口反复 up/down、路由振荡怎么办：本文讲解 Junos hold-time 与指数退避阻尼的配置和调参、LAG minimum-links 冗余设计、cmerror 错误分级与动作，以及从物理层到硬件层的分层排查顺序。

admin admin 2026-08-26
0 0 0
Junos BGP Establishment Troubleshooting: Commands

Junos BGP Establishment Troubleshooting: Commands

Troubleshoot Junos BGP session establishment: the state machine, show bgp neighbor error codes, TCP 179 filtering, auth and MTU faults, and traceoptio

admin admin 2026-08-25
0 0 0
Juniper MC-LAG Best Practices: Configuration and Usage

Juniper MC-LAG Best Practices: Configuration and Usage

Juniper MC-LAG best practices: ARP and MAC sync with arp-l2-validate, bootp DHCP relay, ICCP and ICL design, backup liveness and failure scenarios.

admin admin 2026-08-25
0 0 0
Juniper BGP Session and Route Flaps: Prevention Guide

Juniper BGP Session and Route Flaps: Prevention Guide

Prevent Junos BGP session flaps: passive EBGP sessions, BGP-static routes, address-family damping, BFD, traceoptions evidence and a prevention checkli

admin admin 2026-08-25
0 0 0
Junos Troubleshooting Commands Reference: Route to Flows

Junos Troubleshooting Commands Reference: Route to Flows

Junos troubleshooting commands reference by task: traceoptions, show route, BGP and OSPF diagnostics, forwarding table, SRX security flows and IPsec.

admin admin 2026-08-24
0 0 0
1 … 5 6 7 8