2022 Developer Survey is open! Take survey.

Hot answers tagged

15 votes

How Does A Layer 2 Switch Differentiate Between Different Networks?

A (layer-2) switch doesn't care at all about the IP networks you run through it. however, no normal traffic can occur between two nodes on two different networks. That is correct. Different IP ...
user avatar
  • 69.6k
8 votes
Accepted

How Does A Layer 2 Switch Differentiate Between Different Networks?

The switch doesn't even "see" what is going on above MAC layer. However, hosts are usually configured to send packets to another IP subnet via a default-gateway IP address. So the hosts ...
user avatar
  • 1,437
7 votes
Accepted

MAC address table and frame forwarding on Layer 2 switches - question about when two computers are connected via hub to same switch port

A hub simply repeats electric signals received on a one interface out of all other interfaces. So device 0F, as well as the switch, will receive the frame. In that case the switch will not forward the ...
user avatar
  • 1,437
4 votes

How Does A Layer 2 Switch Differentiate Between Different Networks?

Enterprise-grade switches (what is on-topic here) use VLANs to separate traffic. Basically, VLAN partition a layer-2 switch into separate, unconnected, virtual switches, one for each VLAN on the ...
user avatar
  • 92.9k
3 votes

How Does A Layer 2 Switch Differentiate Between Different Networks?

Commercial grade switches can be partitioned into Virtual LANS, or VLANs. Each VLAN is a logical switch - ports belonging to one VLAN cannot communicate with ports in another VLAN. If you connect two ...
user avatar
  • 62.1k
3 votes

QOS - CPU CoS Weight- pluribus switches

Can it be traffic hampering if I change the cos-weight? The Class of Service (not Server) allows you to give priority to some traffic over other, based on the CoS value. What is important is the ...
user avatar
  • 62.1k
2 votes
Accepted

Ethernet Basics - Switch Fabric, Managed Ethernet Switch & Virtual PHY terminology

A managed Ethernet switch provides some kinds of management and configuration - e.g. bandwidth measurement, error counters, SNMP, VLAN and port configuration. See [1] for more. A switch fabric is a ...
user avatar
  • 69.6k
2 votes
Accepted

Will this switch do what I require?

Any bad/non-existing HTTPS support only refers to the management function of that switch. Traffic on the network, between ports, is just that and it is not going to be impacted in any way by any poor ...
user avatar
  • 69.6k
1 vote

Show LLDP neighbors history

No, not on Aruba/HPE switches. You'd need to have debug logged LLDP events (creating quite a mess likely) or polled the neighbors via SNMP. Otherwise, past information is lost.
user avatar
  • 69.6k
1 vote

How Does A Layer 2 Switch Differentiate Between Different Networks?

Should not all nodes can communicate with each other based on the fact that they all exist in a MAC-based world. The MAC layer of both Ethernet (802.3) and Wi-Fi (802.11) both use 48-bit addresses, ...
user avatar
  • 391
1 vote

Switch stack with only one

Using a single port for stacking isn't possible with N1000 switches. NOTE: N1124T-ON/N1148T-ON/N1124P-ON/N1148P-ON/N1500 10G SFP+ ports may only be configured as stacking in adjacent pairs, e.g. Te1/...
user avatar
  • 69.6k
1 vote
Accepted

Switch with 100Mbit and 1Gbit ports - using its full capacity

How are these different-speed switches internally connected? There's no standard way. Also, it doesn't really matter as long as the switch is non-blocking (which all modern single-chassis switches ...
user avatar
  • 69.6k

Only top scored, non community-wiki answers of a minimum length are eligible