Data Center 归档 - 夜莺博客

标签：Data Center

Dell OS10 SmartFabric Services: Uplink Design

Dell OS10 SmartFabric Services: Uplink Design

Design Dell OS10 SmartFabric Services fabrics: leaf and spine roles, VLT peer links, L2 versus L3 uplinks and external network profiles.

admin admin 2026-10-14
0 0 0
Ceph Public vs Cluster Network Separation

Ceph Public vs Cluster Network Separation

Split Ceph client traffic from OSD replication: configure public_network and cluster_network, choose subnets and MTU, and verify with ceph osd dump.

admin admin 2026-10-13
0 0 0
NVMe-oF: Choosing Between TCP and RoCEv2

NVMe-oF: Choosing Between TCP and RoCEv2

Compare NVMe over TCP and NVMe over RoCEv2: lossless Ethernet requirements, CPU cost per gigabit, latency figures and which transport fits your fabric

admin admin 2026-10-13
0 0 0
Leaf-Spine vs Three-Tier: Choosing a Data Center Design

Leaf-Spine vs Three-Tier: Choosing a Data Center Design

Two-tier spine-leaf and three-tier core-aggregation-access compared on latency, convergence, cabling cost and oversubscription for east-west traffic.

admin admin 2026-10-12
0 0 0
NTP vs PTP: Choosing Time Synchronisation for Networks

NTP vs PTP: Choosing Time Synchronisation for Networks

NTP versus PTP compared for network and data centre clocking: accuracy, hardware timestamping, jitter, and how to deploy each without breaking the oth

admin admin 2026-10-10
0 0 0
MPO and MTP Fiber Polarity, Loss Budget and Testing

MPO and MTP Fiber Polarity, Loss Budget and Testing

MPO/MTP cabling in the data centre explained: polarity methods A, B and C, loss budgets, connector grades, cleaning, and how to test before turning up

admin admin 2026-10-10
0 0 0
UPS Monitoring Over SNMP: Power and Runtime Alerting

UPS Monitoring Over SNMP: Power and Runtime Alerting

Monitor UPS units over SNMP: the UPS MIB objects that matter, onboarding batteries and runtime, load thresholds, and the alerts worth wiring up.

admin admin 2026-10-10
0 0 0
VXLAN BUM Traffic: Ingress Replication vs Multicast

VXLAN BUM Traffic: Ingress Replication vs Multicast

Handle VXLAN BUM traffic: ingress replication versus multicast underlay, the trade-offs in scale and state, and how each affects the control plane.

admin admin 2026-10-08
0 0 0
Jumbo Frames MTU Mismatch: Diagnosing Silent Drops

Jumbo Frames MTU Mismatch: Diagnosing Silent Drops

Diagnose jumbo frame failures: find the device with the low MTU using DF-bit pings, fix it, and understand why large pings fail only to some hosts.

admin admin 2026-10-08
0 0 0
EVPN ESI Multihoming: All-Active vs Single-Active

EVPN ESI Multihoming: All-Active vs Single-Active

How EVPN multihoming uses Ethernet Segment Identifiers: route type 4 DF election, ESI labels for split-horizon and the all-active vs single-active tra

admin admin 2026-10-08
0 0 0
1 2 3 … 5