Questions tagged [network]
For questions about Networking that includes design, and use of a network, the physical cabling, hub, bridge, switch, router, and so forth. Anything in relation to networking and its technologies.
856 questions
2
votes
1
answer
202
views
FRR BGP peering on ipv6 link-local address
I have following setup in my lab. Host1/2 running ubuntu with FRR daemon for BGP. R1 is my cisco nexus switch. I want to route traffic between host1 to host2.
[host1]------ibgp----[R1]------ibgp----[...
- 4,469
4
votes
1
answer
661
views
Wasn't separation of traffic between bridge ports problematic in the presence of hubs?
I know hubs are a thing of the past, but I'd like to know if my reasoning is correct and accurately describes how things worked 30+ years ago. Assume we have a classic two-port bridge, a hub connected ...
- 143
4
votes
5
answers
2k
views
Need Advice - 140m Ethernet Run Between Buildings
I'm facing a technical challenge and could really use your expertise. I need to establish a wired network connection between two points 140 meters apart - well beyond the standard 100m limit for ...
- 49
1
vote
1
answer
80
views
Is the direction of primary/secondary ports on transit switches critical for RRPP operation?
I'm studying the implementation of the RRPP protocol in our existing network environment. Most equipment we use is from HP and Huawei vendors. I've read all available manuals thoroughly, but still ...
2
votes
1
answer
632
views
Why is the spine-leaf topology non-blocking?
I understand that a Clos switch network is non-blocking when the number of spine switches—corresponding to the middle stage in a three-stage Clos architecture—is at least equal to the number of uplink ...
- 23
0
votes
1
answer
107
views
Longest Prefix match with entries greater than my IP
I am currently facing a problem and can't get a definitive answer to how the router will decide the correct interface to forward my packet to.
Given that an IP datagram has destination address of 192....
2
votes
1
answer
275
views
Dual ISP with default route setup
This is how my topo will look end of the day.
eBGP peer between Edge <---> ISP
eBGP peer between Edge <---> Border-Leaf (I am using 65355 to peer eBGP with Edge )
Inside EVPN/VXLAN ...
- 4,469
5
votes
2
answers
445
views
Correct idea for an IPsec gateway
The purpose of this question is to improve my ability to technically apply the idea of routing specific traffic through an IPsec tunnel before reaching the Internet.
So far the best that I can ...
- 51
2
votes
0
answers
141
views
Server redirecting packet via gateway in local LAN
I have Cisco Nexus tor switch connected with multiple servers on 25G nic. When I am pinging from server1 to server2 I am seeing higher latency in ping. After tcpdump found server replying ping reply ...
- 4,469
1
vote
1
answer
84
views
Ethernet Speed on work HP Laptop painfully slow [closed]
I am using VPN Wireguard over a router in Country A which connects to Wireguard router in country B to access internet.
When I plugin in the (same cable and USB Adapter) to my surface pro, I get speed ...
- 111
5
votes
5
answers
1k
views
How can routing protocols such as OSPF and RIP use the network layer
I am currently reading the the network layer chapter in Kurose & Ross Computer Networking: a top down approach. I understand that one of the responsibilities (services) of the network layer is to ...
1
vote
0
answers
46
views
if I have the bandwidth and max bit rate of an environment, how can find the max possible QAM level? [closed]
Lets say B = 2MHz and the max bit rate is 27 Mbps. According to Nyquist's theorem: 27 = 4 * log2 (L) So L will be around 107.63 . Now which is the max QAM Level I can choose? 64-QAM or 128-QAM?
- 11
1
vote
0
answers
54
views
High Speed and Accuracy in Network Intrusion Detection System [closed]
I am designing NIDS. I use AI IDS model to detect attacks. My goal is to improve accuracy and detection speed. The speed is more important! I have two ways.
First, I am going get all packet from ...
- 11
1
vote
0
answers
43
views
Can Layer3 Switches share the same static ip pool? [closed]
In a building, 2 of Layer3(A, B) Switches is active.
A has been used ip address pool (x.x.x.0/26, G/W:x.x.x.1). => Under Layer 3 of A, ip address (x.x.x.3~5) used.
Can B use the same ip pool (x.x.x....
- 11
0
votes
1
answer
145
views
Understanding how the Acknowedge number is subsequently used by a TCP client
I understand the Acknowledgement number (from e.g a server perspective) represents the sequence number plus the received number of bytes, plus one (suggesting the next byte number it expects from the ...
- 11