LOG 归档 - 第66页共139页

MikroTik RouterOS 7 BGP: Templates, Connections and Sessions

RouterOS v7 rebuilt BGP around templates, connections and sessions: eBGP and iBGP peers, address families, routing filters, BFD and a v6 migration che

admin 2026-09-12

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HPE 3PAR Primera Peer Persistence: Failover Explained

HPE 3PAR and Primera Peer Persistence: synchronous Remote Copy, the Quorum Witness, transparent host failover, and the CLI checks to run before and af

admin 2026-09-12

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Ansible Network Modules: ios_config, Facts and Config Backup

ios_config in production: parents and lines, match and replace semantics, real backups that do not overwrite, ios_facts gating and the idempotency tra

admin 2026-09-12

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Cisco 交换机 CPU 占用过高排查：从 show processes 到 CoPP

Cisco Catalyst 交换机 CPU 占用过高怎么排查？本文用 show processes cpu 与 platform 输出区分进程占用还是上送 CPU 的流量，并给出 SISF、ARP 风暴与 CoPP 控制平面限速的完整处置流程。

admin 2026-09-12

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Wi-Fi 7 MLO Deployment: Modes, Channels and Cabling Reality

Deploy Wi-Fi 7 MLO realistically: EMLSR versus STR/NSTR, 6 GHz channel limits, multi-gig uplink and PoE++ needs, and what client devices actually supp

admin 2026-09-12

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bpftrace One-Liners for Production Linux Debugging

bpftrace one-liners for production Linux: which process opens which file, which syscall is slow, read-size histograms and the BTF prerequisites.

admin 2026-09-12

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Ceph OSD Down and Stuck PGs: A Triage Runbook

Triage Ceph from the CLI: read ceph -s and health detail for down OSDs, inspect stuck and incomplete PG states, and replace an OSD without a rebalance

admin 2026-09-12

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Anycast RP with MSDP: Redundant Multicast Rendezvous Points

Deploy redundant multicast RPs with Anycast RP and MSDP: shared RP address, loopback peering, peer-RPF pitfalls, failover testing and SA cache checks.

admin 2026-09-12

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DMVPN Phase 3: NHRP Shortcut and Hub Configuration

DMVPN phase 3 explained: how NHRP redirect and NHRP shortcut work together, hub and spoke configuration, routing summarisation, NAT and verification.

admin 2026-09-12

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Wireshark TCP: Retransmission vs Out-of-Order vs Loss

Wireshark TCP retransmission flags are interpretations, not facts. Use sequence ranges, SACK blocks and capture points to separate real loss from reor

admin 2026-09-12

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