All Questions
Tagged with switch networking
47
questions
0
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0
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12
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Resetting brocade vdx 6720 password to default without boot password
I want to reset a Brocade VDX 6720-24 switch that i got from ebay to default settings. It has a boot password. Extreme networks can not help with the recovery string because it is past end of life. Is ...
2
votes
3
answers
84
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Core Switches Redundancy Problem
I have network. I have three different networks and 2 vlans. PC0 is a member of vlan 10, PC1 is a member of vlan 20. One of the networks for vlan 10, another one is for vlan 20, third network is for ...
- 25
-1
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1
answer
27
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VLSM Error on Cisco Distribution Switch [duplicate]
I have created 3 VLANS which should not overlap but somehow are giving me overlapping problems. Any reasons why? Is the switch buggy?
VLAN 10 10.1.1.0/28
255.255.255.240 Usable:10.1.1.0 to 10.1.1.15
...
0
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0
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80
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End to end delay over N link including the (simplified) propagation delay
It is well know (see this question) and easily verifiable that end-to-end delay in case of trasmission of P packets of size L over N equal links (same transmission rate R) with zero propagation delay ...
- 101
1
vote
2
answers
569
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Brocade 7450 - set MTU to 9000
I have brocade icx 7450.
I already enabled jumbo frames to increase MTU packets on switch.
But unfortunately I am not able to change MTU size of port which I want. When typing after choosing interface ...
- 13
0
votes
1
answer
242
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input discards on Arista 7124SX-F
im seeing input discards on one of our uplink on Arista SW
if i run sh platform fm4000 interface ethernet 22 counters verbose command it is showing smp0DropPkts which is equal to the input discards.
...
- 103
0
votes
1
answer
147
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Noob: i design a network for 156 computers/4 printers, need help in few things
Sorry if this stupid questions: I just learn networking like a week.
Lets say company xyz have 39 computers and 1 printer in each floor, there are 4 floors, total amount of computers is 156computers ...
1
vote
1
answer
200
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Configuring shared uplink on l3 dell s4128f-on
I have a Dell switch s4128f-on which I'm using as L3 core switch. What I want to achieve is creating multiple vlans and being able to reach other networks through an uplink.
What I've done so far is:
...
- 13
1
vote
0
answers
81
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Port mirroring traffic on Hyper-V not showing Layer 3-7 traffic [closed]
We've been experiencing some issues with port mirroring that is used by a Network Intrusion detection system. Our company uses AlienVault as a SIEM and uses a Hyper-V sensor which is used to forward ...
- 11
1
vote
1
answer
4k
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How to reset a Default username and password of Allied Telesis AT9000/28 switch using CLI? [duplicate]
How to reset a Default username and password of Allied Telesis AT9000/28 switch using CLI?
- 11
5
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1
answer
5k
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Does an unmanaged switch deal with IP addresses at all
My belief is that an unmanaged plug-and-play layer 2 network switch only deals with MAC addresses.
When computer A on a local network wants to communicate with computer B for example through the ...
- 153
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0
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22
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What is preamble in ethernet frame and why is it used? [duplicate]
I've searched all over the internet and every say that it synchronize the receiver clocks. What does that mean?
Also I've seen another definition that preamble gives NIC time to realize a frame is ...
- 107
1
vote
1
answer
71
views
How Switch knows if the packet reached it's destination?
In a Lan connected using switch, For the first time if the sender sends a data to the destination, then the switch will send the data to all the devices in the network, and the devices will have to ...
- 107
1
vote
1
answer
81
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How do switches handle network data if the destination computer is powered off in half-way?
Consider a lan network with a switch. Assume the switch has the mac addresses of all the devices in it's newtork. If the source computer sends the data to the destination computer through a switch, ...
- 107
1
vote
1
answer
237
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Is it possible to configure Cisco ASR901 as a layer 2 VLAN switch?
I have been fiddling with a Cisco ASR901 for a while now, but I can't wrap my head around configuring it as a layer 2 VLAN switch. Is it not possible to configure one of its Gigabit Ethernet ports as ...
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