routing 归档 - 第6页 共12页 - 夜莺博客

标签：routing

IS-IS Level 2 to Level 1 Route Leaking Configuration

IS-IS Level 2 to Level 1 Route Leaking Configuration

Configure IS-IS route leaking with redistribute isis ip level-2 into level-1, understand the up/down bit and remove suboptimal interarea paths.

admin admin 2026-09-19
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IPsec VTI vs Policy-Based VPN: Choosing and Configuring

IPsec VTI vs Policy-Based VPN: Choosing and Configuring

Compare IPsec VTI (route-based) with policy-based crypto maps: routing protocol support, NAT and overlapping subnets, VRF awareness, and when to add G

admin admin 2026-09-19
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Port-Channel Load Balancing Hash Algorithm Tuning

Port-Channel Load Balancing Hash Algorithm Tuning

Why an eight-link port-channel can still run at 15% on one member: pick the right EtherChannel hash and prove the flow distribution is even.

admin admin 2026-09-19
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BGP Link Bandwidth Extended Community Explained

BGP Link Bandwidth Extended Community Explained

Use the BGP link bandwidth extended community for unequal-cost load balancing: dmzlink-bw configuration, iBGP propagation, and weight calculation cave

admin admin 2026-09-19
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Junos RE Protection: Control Plane Filter and Policers

Junos RE Protection: Control Plane Filter and Policers

Protect a Junos Routing Engine from TCP and ICMP floods: build the protect-RE stateless filter with policers, apply it to lo0, and verify with show fi

admin admin 2026-09-17
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BGP Graceful Shutdown: the GShut Community (RFC 8326)

BGP Graceful Shutdown: the GShut Community (RFC 8326)

Use the well-known GRACEFUL_SHUTDOWN community (65535:0) to drain BGP traffic before maintenance instead of blackholing it, with IOS XE and IOS XR exa

admin admin 2026-09-17
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BGP Prefix-Based Outbound Route Filtering (ORF)

BGP Prefix-Based Outbound Route Filtering (ORF)

Configure BGP prefix-based ORF so a router filters unwanted updates at the source instead of processing them locally, with IOS and IOS XR capability e

admin admin 2026-09-17
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IOS XR BGP maximum-prefix and discard-extra-paths

IOS XR BGP maximum-prefix and discard-extra-paths

Protect IOS XR routers from route leaks and memory exhaustion with BGP maximum-prefix, warning thresholds, restart timers and the discard-extra-paths

admin admin 2026-09-17
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DHCPv6 Prefix Delegation: ISP to CPE Config

DHCPv6 Prefix Delegation: ISP to CPE Config

Configure DHCPv6 prefix delegation between ISP edge and CPE: client pd, general prefix pools, server pools, verification and failure modes.

admin admin 2026-09-15
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Cisco uRPF: Strict vs Loose Mode Anti-Spoofing

Cisco uRPF: Strict vs Loose Mode Anti-Spoofing

Deploy uRPF on Cisco IOS/IOS-XE correctly: strict vs loose mode, allow options, where to apply it, and how to avoid dropping valid asymmetric traffic.

admin admin 2026-09-15
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