Layer 2
Latest 10 Articles
BFD over LAG routing design. [Packet Pushers]
The history of Ethernet. [ipSpace] [IP Journal PDF]
Can we skip the network layer? [ipSpace]
Trunk to access - will it work? [Lost In Transit]
AMS-IX outage: Layer 2 strikes again. [ipSpace] [AMS-IX] [RIPE 87]
LAN data-link layer addressing. [ipSpace]
Early data-link layer addressing. [ipSpace]
What is Ultra Ethernet all about? [ipSpace]
Older Articles
Single-port LAGs. [ipSpace] [Lindsay Hill]
Does EVPN/VXLAN over SD-WAN make sense? [ipSpace]
L2 is bad. [ipSpace]
DHCP relaying across a firewall. [ipSpace]
OSPF and ARP on unnumbered IPv4 interfaces. [ipSpace]
ARP and static routes. [ipSpace]
ARP details behind the scenes. [ipSpace]
Happy 50th birthday Ethernet! [Geoff Huston] [Ars Technica] [ipSpace] [Computerphile]
Are LACP fast timers any good? [ipSpace]
In pursuit of 1.6Tbps DC network speeds. [Network Computing]
CDP and LLDP neighbour parser. [Packet Pushers] [neighborparser]
Why is OSPF (and BGP) more complex than STP? [ipSpace]
DHCP relaying with redundant DHCP servers. [ipSpace]
Turning WiFi into a thick yellow cable. [ipSpace]
DHCP relaying in VXLAN segments. [ipSpace]
Dynamic MAC learning: hardware or CPU activity? [ipSpace]
Hiding malicious packets behind LLC SNAP header. [ipSpace]
Relationships between Layer-2 (VLAN) and Layer-3 (subnet) segments. [ipSpace]
MLAG vith EVPN deep dive. [ipSpace]
Thoughts on switch failures. [Packet Pushers]
Running routing protocols over MLAG links. [ipSpace]
Integrated Routing and Bridging (IRB) design model. [ipSpace]
Successful hack of time-triggered Ethernet. [Schneier] [Ars Technica]
Using EVPN/VXLAN with MLAG clusters. [ipSpace]
History of Ethernet encapsulations. [ipSpace]
From bits to application data. [ipSpace]
How routers became bridges. [ipSpace]
Is VLAN 1 special in Cisco networks? [Lost In Transit]
Ethernet loses most of the time. [EtherealMind]
Select the best switching ASIC for the job. [ipSpace]
What happened to FabricPath and its friends? [ipSpace]
The impact of jumbo MTU on DC switches. [ipSpace]
VTP is insecure. [ipSpace]
MTU settings in virtual network devices. [ipSpace]
Hardware differences between routers and switches. [ipSpace, Response, ipSpace]
Stretched VLANs - what problem are you trying to solve? [ipSpace]
Ethernet standards looks at speeds beyond 400Gbps. [The Register]
When stretching Layer 2, separate your fate. [ipSpace] [Ethan Banks]
Is switching latency relevant? [ipSpace]
Response. [ipSpace]
Routing in stretched VLAN designs. [ipSpace]
IPoE vs PPPoE. [ipCisco]
Building secure L2 DC fabrics with Cisco Nexus. [ipSpace]
Do switches even matter anymore? [Packet Pushers]
A summary of high-speed Ethernet ASICs. [Elegant Network]
Switching. [ipCisco]
When all you have are stretched VLANs. [ipSpace]
Should I go with VXLAN or MLAG with STP? [ipSpace]
How long can an Ethernet cable be? [EtherealMind]
Stretched VLANs and failing firewall clusters. [ipSpace]
Stretched Layer 2 subnets in Azure. [ipSpace]
How did we end up with a 1500-byte MTU? [ipSpace]
Hyperscalers drive Ethernet roadmap. [EETimes]
Reinventing your own STP wheel. [ipSpace]
Before Ethernet and IP there was SDLC and IPX. [EtherealMind]
History of ATM. [Network Collective: part 1, part 2] [Russ White]
MST configuration on Cisco. [ipCisco]
We're stuck with 40 years old technology. [ipSpace]
Why do we still use STP? [Packet Pushers, YouTube]
Should we stretch L2 between our primary and DR sites? [Packet Pushers]
MST. [ipCisco]
PVST+ and Rapid PVST+. [ipCisco]
PVST+ and Rapid PVST+ configuration on Packet Tracer. [ipCisco]
Should I use PVST or MSTP? Why? [EtherealMind]
Network rookies leave STP at defaults. [Packet Pushers]
Ethernet in automotive. [EETimes]
6 design principles of the modern LAN. [NoJitter]
Higher speed Ethernet requirements continue to grow. [Network Computing]
Ethernet's 50G benefits groked. [EETimes]
MAC address learning basics. [Network Computing]
2018 is the year of 100GE. [Russ White] [DC Knowledge]
400G Ethernet is here. [EETimes]
PPPoE. [ipCisco]
Metro Ethernet. [ipCisco]
Why Spanning Tree is important. [Network Computing]
Ethernet basics. [ipCisco]
Local area networks. [ipCisco]
Switches. [ipCisco]
The need for stretched VLANs. [ipSpace]
Response. [ipSpace]
ARP. [ipCisco]
Ethernet redundancy. [ipCisco]
White box switching. [Russ White] [Apex Tier]
IEEE 802.3cc-2017 - 25GE standard for enhanced enterprise and metro network applications over fibre. [EtherealMind]
The history of hardware switching. [Russ White]
BFD - Bidirectional Forwarding Detection. [ipCisco]
BFD operation. [ipCisco]
Ethernet Alliance introducing 200GE and 400GE. [EtherealMind] [Ethernet Alliance]
The 200GMII and 400MGII extenders. [EtherealMind] [Ethernet Alliance]
Revisited: the need for stretched VLANs. [ipSpace]
HDLC and PPP. [ipCisco]
Spanning Tree:
eVPNs for Layer 2. [Russ White] [Cumulus Networks]
What exactly should my MAC address be? [ipSpace]
Create a VLAN map from network operational data. [ipSpace]
GRE - Generic Routing Encapsulation. [ipCisco]
History of networking: Spanning Tree. [Network Collective]
The CWDM8 MSA avoids PAM-4 to fast-track 400G. [GazettaByte]
MultiPhy unveils 100G single-wavelength PAM-4 chip. [GazettaByte]
Private VLANs. [ipCisco, config example]
What is a Protected Port? [ipCisco]
10GBaseT is not a big deal. [Packet Pushers]
Ethernet getting back on the Moore's Law track. [Russ White] [TheNextPlatform]
Two decades of VLANs. [The Register]
To jumbo or not to jumbo? [ipSpace]
PCIe versus Ethernet in a composable system. [Russ White]
Why do you learn Frame Relay and PPP today? [Packet Pushers]
Farewell to 40Gbps Ethernet. [The Register]
More affordable 10GBase-T switches imminent. [HardOCP] [AnandTech]
Making the leap to 25GE and beyond. [Network Computing]
2.5 and 5 Gigabit Ethernet: benefits and use cases. [Network Computing]
Do you need 2.5 and 5 Gigabit Ethernet? [Network Computing]
Do not buy 40GE Ethernet -- it's obsolete. [Packet Pushers]
Open networking options grow. [Network Computing]
ARP - detailed analysis. [Packet Pushers]
Facebook debuts 'Backpack' switch platform. [Network Computing] [Facebook Blog] [The Register] [Russ White] [MarketWatch]
100G+ data center evolution and challenges. [NANOG 68 YouTube]
25 - 50 - 100 Gigabit Ethernet options and experiences in the data center. [NANOG 68 YouTube]
Facebook's 100GE Wedge switch makes strides. [Network Computing] [Networking Nerd]
25 Gigabit Ethernet rollout. [Network Computing]
Replacing FabricPath with VXLAN, EVPN or ACI? [ipSpace]
VPLS: [ipCisco]
Label switched multicast - Ethernet header. [Packet Mischief]
Layer 2 routing -- haven't we been here before? [Russ White]
Link aggregation terminology explained. [Network Computing]
Three drivers for 25GE adoption. [Network Computing]
Towards 25GE standardisation. [Network Computing]
10 ways to get the most out of Ethernet. [Network Computing]
Leaving fixed function switches behind. [Russ White] [TheNextPlatform]
Metro optical networks at the heart of Internet Exchanges. [DC Knowledge]
Construction zones on the Ethernet roadmap. [Russ White] [TheNextPlatform]
LACP is not Link Aggregation. [DC Overlords]
Neighbor discovery protocols: [ipCisco]
Spanning Tree woes. [ipSpace]
STP and bridging loops. [ipSpace]
Ethernet picks up the pace. [EE Times]
VLANs and failure domains revisited. [ipSpace]
25GE data center deployment scenarios. [Network Computing]
Dark fibre: embracing the dark side. [Network Computing]
Providing timing synchronization in Ethernet raises many issues. [EE Times]
Three trends driving the 100G Ethernet market. [DC Knowledge]
STP on virtual switches. [ipSpace]
Link utilisation by packet size. [Network Sherpa]
SPAN scaling challenge. [Network Sherpa]
Ethernet checksums are not good enough for storage. [ipSpace]
Building a 40G MACsec FPGA IP core. [EE Times]
How RSTP handles topology changes. [Aspiring Networker]
Choosing paths to future Ethernet speeds. [GazettaByte]
Skipping 10GE and going direct to 25GE? [EtherealMind]
Stretched VLANs make little sense. [ipSpace] [Andrew Lerner]
When a port channel member link goes down. [Packet Mischief]
Another spectacular Layer 2 failure. [ipSpace]
The stupidness of switch programming. [ipSpace]
A guide to the terminology of open switching. [NetworkWorld]
What is Layer 2 and why do we need it? [ipSpace]
More Layer 2 misconceptions. [ipSpace]
Let's get rid of the thick yellow cable. [ipSpace] [Mark Burgess]
Who cares about FCoE in 2015? [EtherealMind]
Differences in how Fibre Channel and Ethernet measure speed. [DC Overlords]
STP notes for CCDE. [Lost In Transit]
Multigigabit Ethernet 2.5 / 5.0Gbps NBASE-T Alliance. [IPEngineer]
DHCP snooping -- filter those broadcasts. [MellowD]
Move aside twisted-pair Ethernet, it’s time for WiFi to take the network reins. [ExtremeTech]
Micro-BFD: BFD over LAG. [ipSpace]
Last chance at chassis switch saloon. [EtherealMind]
LAG vs ECMP. [ipSpace]
RSTP basics -- can this be done? [StackExchange]
How long is a frame really supposed to be, and when is a frame a babble? [StackExchange]
STP and expert beginners. [ipSpace]
Is STP really evil? [ipSpace]
Explanation: TunnelX temporarily disabled due to recursive routing. [PacketU]
Potential issues with multicast within a VLAN spanning switches. [Lost in Transit]
SPAN destination ports and VLAN membership. [Aspiring Networker]
Ethernet, STP, topology change and the behaviour of Ethernet. [Lost in Transit]
Facebook reveals open network gear. [The Register] [GigaOM]
Facebook's new "Wedge" Open Compute Project network switch. [Reddit] [Facebook] [Business Insider]
Switch prices will get cheaper - design models will change. [EtherealMind]
What does everyone replace their 6500s with? [Reddit]
Understanding tunnel path MTU discovery. [PacketU]
When a VLAN is not a VLAN. [Mellowd]
Take your network to 40/100G Ethernet. [DC Knowledge]
Use of the Ethertype in a frame. [Reddit]
Can MSTP (802.1s) be used to emulate Rapid-PVST? [StackExchange]
Understanding Cisco FabricPath. [DustyDev]
Using carrier-delay with BFD on the same interface. [StackExchange]
Admin VLAN best practices. [Reddit]
Cisco Nexus 5000 VTP trunk status in vPC consistency parameter. [StackExchange]
Spine and leaf architecture and security/services. [Reddit]
The evolution of the Ethernet switch. [Network Computing]
STP design considerations: MSTP and regions. [StackExchange]
Catalyst 2960x vs Juniper EX4200. [Reddit]
Will 2014 be the year of 10GE? [Network Computing]
Visual guide to LAG thinking for server admins. [EtherealMind]
Authentication mac-move permit. [StackExchange]
Voice VLAN information. [StackExchange]
RSPAN and 802.1q tags limitation. [NExp]
Why can't we find Ethernet checksum in Wireshark? [StackExchange]
Monitoring without port mirroring. [StackExchange]
'interface vlanX' or 'interface loopbackX'. [StackExchange]
Mixing Cisco STP Features: BPDU Guard, BPDU Filter, PortFast and PortFast Trunk. [StackExchange]
Cloud Ethernet Forum -- because Ethernet needs to look like Frame Relay. [EtherealMind]
What is the actual size of an Ethernet MTU. [StackExchange]
Detecting different Ethernet frames. [StackExchange]
Switch lookup table. [StackExchange]
IEEE 400Gbps Ethernet study group. [EtherealMind] [IEEE]
Combining GRE and IPSec with a Front Side VRF. [PacketU]
What to use as ARP request Target Hardware Address? [StackExchange]
Something is filling my force10 ARP table. [StackExchange]
Map the underlying structure of a VLAN. [StackExchange]
Tracking down an invalid source mac address. [StackExchange]
Extending Layer-2 connection into a cloud. [ipSpace]
How was the MTU size for ethernet frames calculated as 1500 bytes? [StackExchange]
Five tips to save a bundle on switches. [Network Computing]
Picking the right switch: a buyer's decision tree. [Network Computing]
Ethernet autonegotiation differences between (10M | 100M | 1G) Ethernet. [StackExchange]
Cisco Catalyst 3750/3560 SYN FLOOD protection. [StackExchange]
In what mode does the 2960-S IOS prompt ends with a colon “:”. [Stack Exchange]
In 802.1Q Tunneling what exactly is meant by “a point-to-point topology before you enable tunneling for PAgP, LACP, or UDLD”? [StackExchange]
Carrier's VLAN tags overlap my own. [StackExchange]
What happens when the ARP cache overflows? [StackExchange]
Implement layer 2 DMZ with VLAN translation. [StackExchange]
How to monitor VLAN traffic? [StackExchange]
Trying to test a virtual lab VRRP configuration for STP issues. [StackExchange]
How can I make a PVST+ switch root towards MST network? [StackExchange]
Is ATM still used as a transport protocol? [StackExchange]
Can adding VLANs to a vPC be done hot? [StackExchange]
Two SSIDs for same VLAN -- problems? [StackExchange]
About the switchport mode. [StackExchange]
NX-OS peer-switch issues with 6500 VSS. [StackExchange]
How can I capture traffic on Cisco IOS switches? [StackExchange]
A quick fix for a bad switch port. [Network Sherpa]
Are there any reasons not to use BFD? [StackExchange]
VM BPDU spoofing attack works quite nicely in HA clusters. [ipSpace]
VLANs are the wrong abstraction for virtual networking. [ipSpace]
What did you do to get rid of manual VLAN provisioning? [ipSpace]
Where is my VLAN provisioning application? [ipSpace]
Ethernet at 40: its daddy reveals its turbulent youth. [The Register]
Tech notes: what is shortest path bridging IEEE 802.1aq? [EtherealMind]
What's happening inside an Ethernet switch? [EtherealMind]
Ethernet sales fizzle, but self-aware networks set to explode. [The Register]
On the premature death of STP. [Network Janitor]
Who needs 16 uplinks? Welcome to the 10GE world! [ipSpace]
Intel: high quality built-in PHYs simplify ToR switch designs. [EtherealMind] [Intel]
10GBaseT -- still improving in invisible ways. [EtherealMind]
Do we need LACP and UDLD? [ipSpace]
Simultaneous tunneled and native Internet access. [PacketLife]
Dear VMware, BPDU filter != BPDU guard. [ipSpace]
Midokura's MidoNet: a layer 2-4 virtual network solution. [ipSpace]
IEEE begins work on 400Gbps and 1Tbps Ethernet. [ExtremeTech] [cNet] [Hexus]
Network boffins say Terabit Ethernet is too fast. [The Register]
Mobile ARP in enterprise networks. [ipSpace]
The difference between metro Ethernet and stretched data center subnets. [ipSpace]
Why do IXPs need layer 2? [ipSpace]
Basics: what's the difference between STP BPDU Guard and Root Guard? [EtherealMind]
11 things about using a transparent or layer 2 firewall. [EtherealMind]
ARP reply with multicast source MAC is indeed illegal. [ipSpace] [RFC1812]
Layer 2 network is a single failure domain. [ipSpace]
Transparent bridging (aka L2 switching) scalability issues. [ipSpace]
STP loops strike again. [ipSpace]
Full mesh is the worst possible fabric architecture. [ipSpace]
vCider: a hammer looking for a nail? [ipSpace]
Basics: Cisco VLAN Trunking Protocol -- transparent discard and passing VTP packets. [EtherealMind]
Beware of fabric-wide link aggregation groups. [ipSpace]
Monkey design still doesn't work well. [ipSpace]
Infiniband over Ethernet is better than Ethernet, says VMware. [EtherealMind]
Stretched layer 2 subnets -- the server engineer perspective. [ipSpace]
Using FC, FCoE or iSCSCI when deploying new gear in existing data center. [ipSpace]
Do we really need Stateless Transport Tunneling (STT)? [ipSpace]
EVB -- Edge Virtual Bridging (802.1Qbg) -- A technology refusing to die. [ipSpace]
GRE vs IPIP tunneling. [PacketLife]
Ethernet standards for hyper-scale cloud networking. [The Register]
Preventing bridging loops without BPDUs? [ipSpace]
Can fibre optic Ethernet cables be longer than the standard? [EtherealMind]
Large-scale L2 DCI: a true story. [ipSpace]
FCoE and LAG -- industry-wide violation of FC-BB-5. [ipSpace]
Decouple virtual networking from the physical world. [ipSpace]
Ethernet jumbo frames, full duplex and why jumbo frames are 9000 bytes. [EtherealMind]
VMware vSwitch -- the baseline of simplicity. [ipSpace]
Ethernet reaches for the hyper-scale cloud. [The Register]
Virtual switches need BPDU guard. [IOS Hints]
You can't sell multi-hop FCoE even though it's a consultant's dream. [EtherealMind]
Busting layer-2 data center interconnect myths. [IOS Hints]
When discussing stretched clusters... [ipSpace]
Why Gigamon scares the crap out of me. [Evil Routers]
L2 or L3 switching in campus networks? [IOS Hints]
Generic VLAN design. [IOS Hints]
Should I use BFD in my network? [EtherealMind]
Can network architectures break the speed limit? [The Register]
CloudSwitch -- VLAN extensions done right. [IOS Hints]
Source MAC address spoofing DoS attack. [IOS Hints]
Stop reinventing the wheel and look around. [IOS Hints]
The Ethernet traffic mix-up. [EtherealMind] [The Register]
Speed matters: how Ethernet went from 3Mbps to 100Gbps... and beyond. [Ars Technica]
Network evolution and the hierarchy of needs. [EtherealMind]
All MTUs are not the same. [IOS Hints]
Do we really want 100Gig Ethernet? [The Register]
The beauties of dense-mode FCoE. [IOS Hints]
Blast from the past: ATM and PoS interfaces. [IOS Hints]
Stretched clusters: almost as good as heptagonal wheels. [IOS Hints]
EVB -- 802.1QBG -- the S component. [IOS Hints]
Ignoring STP? Be careful, be very careful. [IOS Hints]
Edge Virtual Bridging (EVB, 802.1QBG) eases VLAN configuration pains. [IOS Hints]
Fate sharing, failure domains and why VTP is awesome. [EtherealMind]
Explaining L2 multipath in terms of north/south, east/west bandwidth. [EtherealMind]
L2 Multipath basic design differences. [EtherealMind]
Does bridge assurance make UDLD obsolete? [IOS Hints]
Fault detection in metro Ethernet. [EtherealMind]
Diverging Ethernet switch markets. [EtherealMind]
Local Area Mobility (LAM) -- the true story. [IOS Hints]
Spanning tree, three states and why committees suck. [EtherealMind]
Layer-3 gurus asleep at the wheel. [IOS Hints] [Network Janitor]
Hybrid access layer design revisited. [PacketLife]
A VLAN hopping attack. [CCIE Blog]
Backplane Ethernet -- the GBaseK standard. [EtherealMind]
All the Ethernet cooks. [Etherealmind]
Bidirectional forwarding detection (BFD). [CCIE Blog]
Ethernet IFG -- another living fossil? [IOS Hints]
Multi-chassis link aggregation basics. [IOS Hints]
Introduction to 802.1Qbb. [IOS Hints]
DHCP snooping and dynamic ARP inspection. [PacketLife]
Bridging and routing: is there a difference? [IOS Hints: part 1, part 2]
Bridges: a kludge that shouldn't exist. [IOS Hints]
IEEE 802.1Q tunnelling. [PacketLife]
The basics of ATM. [MPLS VPN]
InfiniBand to outpace Ethernet's unstoppable force. [The Register]
Interconnecting two core switches. [IOS Hints] [Packet Attack]
Blocking unknown unicast flooding. [PacketLife]
Port security. [PacketLife]
Multiple Spanning Tree (MST). [PacketLife]
How well do you know VTP? [CCIE Blog]
Locating a host port by IP address. [PacketLife]
The invisible Catalyst switch. [PacketLife]
Understanding STP and RSTP convergence. [CCIE Blog]
Understanding MSTP. [CCIE Blog]
Unnumbered Ethernet VLAN interfaces. [NIL Wiki]
VXLAN
Routed packet walk in VXLAN/EVPN network. [Lost In Transit]
VXLAN virtual labs have never been easier. [ipSpace]
Bridging packet walk in VXLAN/EVPN network. [Lost In Transit]
Simulate a silent host in a VXLAN network. [Lost In Transit]
VXLAN/EVPN - host routing. [Lost In Transit]
VXLAN/EVPN - host mobility. [Lost In Transit]
VXLAN/EVPN - host ARP. [Lost In Transit]
Introduction to EVPN in VXLAN networks. [Lost In Transit]
Forwarding BUM frame sin VXLAN with static ingress replication. [Lost In Transit]
Forwarding BUM frames in VXLAN with multicast in underlay. [Lost In Transit]
Does EVPN/VXLAN over SD-WAN make sense? [ipSpace]
Layer 3 handoff (L3Out) in VXLAN/EVPN fabrics. [ipSpace]
Choosing the protocol underlay in a VXLAN network. [Lost In Transit]
VXLAN / EVPN - what are the challenges in L2-based networks? [Lost In Transit]
Introduction to VXLAN. [Lost In Transit]
DHCP relaying in VXLAN segments. [ipSpace]
Using EVPN/VXLAN with MLAG clusters. [ipSpace]
Use VRFs for VXLAN-enabled VLANs. [ipSpace]
VXLAN drops large packets. [ipSpace] [Constant Pinger]
Combining MLAG clusters with VXLAN fabric. [ipSpace]
VXLAN-to-VXLAN bridging in DCI environments. [ipSpace]
Migrating from FabricPath to EVPN/VXLAN. [StubArea51]
EVPN/VXLAN complexity. [ipSpace]
Why would you need VXLAN transport? [ipSpace]
Can we really use millions of VXLAN segments? [ipSpace]
Private VLANs with VXLAN. [ipSpace]
Loop avoidance in VXLAN networks. [ipSpace]
Large Layer-2 domains strike again. [ipSpace] [Krebs Twitter]
Active-active DCs with VXLAN and EVPN. [ipSpace]
VXLAN is still insecure. [ipSpace]
The sunset of VXLAN. [NANOG 74 YouTube]
The sunset of VXLAN -- really? [ipSpace]
VXLAN broadcast domain size limitations. [ipSpace]
VXLAN limitations of data center switches. [ipSpace]
Could we build an IXP on top of VXLAN infrastructure? [ipSpace]
VXLAN designs. [Russ White] [Cumulus Networks: part 1]
Are VXLAN-based large Layer 2 domains safer? [ipSpace]
Extending Layer 2. [Network Collective, YouTube]
VXLAN ping and traceroute. [ipSpace] [ipSpace stream]
VXLAN gateway hardware overview. [ipSpace]
VXLAN has no security! [ipSpace]
VXLAN on VMware NSX: VTEP, proxy, Unicast/Multicast/Hybrid mode. [Route Reflector]
Cisco adds Ethernet VXLAN BGP support to Nexus switches [The Register]
Revisited: Layer 2 DCI over VXLAN. [ipSpace]
VXLAN encapsulation in Juniper Contrail. [ipSpace]
Layer 3 switching over VXLAN revisited. [ipSpace]
vMotion and VXLAN. [ipSpace]
Using VXLAN to speed & secure your clouds. [DC Knowledge]
VXLAN scalability challenges. [ipSpace]
VXLAN gateway design guidelines. [ipSpace]
VMware's SDN dilemma: VXLAN or Nicira? [Brad Hedlund]
Long-distance vMotion, stretched HA clusters, and business needs. [ipSpace]
VXLAN gateways. [ipSpace]
VXLAN is not a data center interconnect technology. [ipSpace]
A better fabric with VMware NSXi for your network switch. [Brad Hedlund]
VM-level IP multicast over VXLAN. [ipSpace]
VXLAN and OTV: I've been suckered. [ipSpace]
Could MPLS-over-IP replace VXLAN or NVGRE? [ipSpace]
VXLAN and EVB questions. [ipSpace]
VXLAN runs over UDP -- does it matter? [ipSpace]
VXLAN, IP multicast, OpenFlow and control planes. [ipSpace]
The first open vSwitch VXLAN patch is in. [Network Heresy]
VXLAN termination on physical devices. [IOS Hints]
NVGRE, VXLAN and what Microsoft is doing right. [Network Heresy] [IOS Hints]
Top five things about VXLAN -- and why it's full of fail. [EtherealMind]
Trill
Why is TRILL not routing at layer 2? [IOS Hints]
Setting the stage for TRILL, rethinking data center switching. [Brad Hedlund]
Trill/fabric path -- STP integration. [IOS Hints]
Rant: why SPB doesn't get any attention. [Etherealmind]
On "Why TRILL won't work for the data center". [Brad Hedlund]
DCB and TRILL have nothing in common. [IOS Hints]
TRILL goes to WAN -- the bridging craze continues. [IOS Hints]
Does TRILL make sense at all? [ipSpace]
The state of TRILL. [ipSpace]
MC-LAG
MLAG clusters without a physical peer link. [ipSpace]
Running routing protocols over MLAG links. [ipSpace]
MLAG deep dive:
MLAG (MC-LAG): stacking on steroids. [IOS Hints]
MLAG and load balancing. [IOS Hints]
MLAG and hot potato switching. [IOS Hints]
MLAG: external brains. [IOS Hints]
vSwitch in MLAG environment. [IOS Hints]
L2 DCI with MLAG over VPLS transport? [IOS Hints]
Don't try to fake MLAG. [IOS Hints]
Q-in-Q / MAC-in-MAC
cVLAN and sVLAN. [EtherealMind]
oVLAN and uVLAN. [EtherealMind]
© Robert Larsen. All rights reserved.