Peregrino69
  • Member for 7 years, 1 month
  • Last seen more than a month ago
Small variations in ping on a LAN
Accepted answer
6 votes

I'd say it looks normal. But I think you're doing this a bit wrong. Ping has one function only: probing, i.e. "Hello, are you there" - "Hello, yes I am here". While it shows you the latency between ...

View answer
Basic VLAN setup
Accepted answer
5 votes

VLAN tagging in a nutshell: When a port must pass traffic from only one VLAN, the port is untagged on that VLAN When a port must pass traffic from multiple VLANs, the port can be untagged on one VLAN ...

View answer
If you can't ping an ip address this means nothing in regards to dns right?
4 votes

Correct. DNS is a service which resolves a name to an IP address. If you are not pinging a name, you aren't using DNS.

View answer
Cannot get 2nd vlan to access internet or ping router gateway
4 votes

I believe you mean to say that the router has an IP address 192.168.1.1/24, and this is the default gateway for clients in subnet 192.168.1.0/24? The router has another default route pointing to ...

View answer
HP Switching, DT Links to two STP switches?
4 votes

This isn't Distributed Trunking. The described topology is: .-------. .-------. | | | | | 8200A |--| 8200B | | | | | '-------' '-------' | | | | ....

View answer
How does a router/switch know which queue a packet should be put in?
4 votes

A network device generally has 3-4 queues for traffic handling. WFQ is not strictly speaking a queuing algorithm, it's a egress traffic scheduling algorithm. It determines how the traffic placed in ...

View answer
Why can PPPoE connect to a gateway which is not in the same subnet
3 votes

I'm not sure if I understand your question. 255.255.255.255 translates to "This device, and only this device". Or maybe "this interface" is a better expression. It's not part of ...

View answer
HP Procurve 5412zl Management unresponsive via IP when cpu high
Accepted answer
3 votes

There's a very simple answer. Management traffic such as SSH, HTTP, ICMP is handled by the CPU. The main purpose of the switch is traffic forwarding, and management traffic has the lowest priority. ...

View answer
static link aggregation
Accepted answer
3 votes

LACP is nowadays in IEEE802.1AXbk-2012. The abstract reads: Link Aggregation allows one or more links to be aggregated together to form a Link Aggregation Group, such that a Media Access Control (...

View answer
Switch with VLAN: How to map between VLANs networks
Accepted answer
2 votes

When you create a VLAN, you split your switch into separate logical devices, each serving its dedicated network segment. They behave exactly like separate, unconnected physical devices; no traffic can ...

View answer
Creating one virtual switch that extends over two HP 2920-48G?
Accepted answer
2 votes

Actually your definition of stacking is correct, and your vendor's not. However he might be referring to traditional HP Stacking, which indeed isn't "true" stacking at all. Bigger HP switches are ...

View answer
DHCP on multiple ranges?
Accepted answer
2 votes

Just configure your DHCP server with scope 192.168.0.2 - 192.168.255.254 and subnet mask 255.255.0.0. Here's an example how to do it with Microsoft DHCP server: .255.255 is the broadcast address, so ...

View answer
Is there an upper or lower bound of bandwidth given a particular RSS value?
2 votes

There's no way to say "RSS -60dBm equals transmit rate X Mb/s" or something similar. WiFi performance depends on many factors. Bandwidth itself can be a bit confusing context. A wireless standard has ...

View answer
HP 2920-48G Switch and Apple Airport Extreme problems
2 votes

The event message means that the connected device is incessantly transmitting either oversized packets with CRC errors (jabbering), or fragmented frames. This is unlikely to be caused by a duplex ...

View answer
Problem setting up two Wi-Fi module for two way communication
2 votes

Copying here hat I put in Super User a few days ago: I had a peek at the not-too-informative manuals and the not-much-more-informative website. I did notice your setup is the same test setup you find ...

View answer
MSTP with no single point of failure with 4 switches and 2 regions
Accepted answer
2 votes

Yes, it's that simple, just set priorities appropriately :-) So you configure your Core 1 with highest and Core 2 with lower priority for instance 1, and configure instance 2 similar way. You leave ...

View answer
If IPv6 exists, why do we still pay for static IPv4 addresses?
1 votes

progress seems throttled because companies still want to charge for IPs and don't want to address that there is no IP starvation in IPv6 (yet). TL/DR: ISPs have a valid reason to charge from IP ...

View answer
Configure dhcp relay agent and router on stick
1 votes

Thought it might be beneficial to others to expand @Ron Maupin's comment to an actual answer. What happens with the stated configuration is as follows: A guest connects to VLAN 30 in Branch network ...

View answer
Do routers overwrite options of IP packets?
1 votes

Does this answer the question? The Physical Layer EtherNet/IP uses the standard IEEE 802.3 model at the Physical and Data Link Layers. The Network and Transport LayersThe Network and ...

View answer
How a socks proxy is different from a normal proxy?
Accepted answer
1 votes

As Zac67 says, there's no such thing as "normal proxy" as anything can be proxied but with "normal" proxy usually people refer to http proxy. Also this does go beyond the scope of ...

View answer
HP Procurve VLAN menu BUG
1 votes

This isn't a bug. Firstly, yes, the VLAN names are too long to be shown in the Menu interface. Secondly, there's a limit on how many VLANs you can see in the menu in the first place - 32. Your VLAN ...

View answer
HP procurve 5412zl ACL
Accepted answer
1 votes

Thanks, config makes it easier :) When you look at the config file, each item (excluding "module") is a configuration command you can give on the CLI. And every command is negated with a preceding "...

View answer
What is the use of 16 Bytes chaddr in DHCP packet header?
1 votes

RFC2131 p. 7: From the client's point of view, DHCP is an extension of the BOOTP mechanism. This behavior allows existing BOOTP clients to interoperate with DHCP servers without requiring ...

View answer
What is the maximum data transfer rate on WLAN for data sharing
Accepted answer
1 votes

I'm afraid that on the network point of view this is a somewhat impossible question. In wired Ethernet if you have a Gigabit switch and 2 clients with GB NICs, you can expect to get a stable ~1GB/s ...

View answer
Router interface on same subnet
0 votes

Here's a much simplified explanation. This applies only in a situation where a router has 2 locally connected interfaces in the same subnet without link aggregation or other bonding method. There are ...

View answer