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8

votes

3

answers

2k

views

What's the difference between `Latency` and `Round Trip Time`?

latency

modified Aug 2 at 13:51 Chaminda Bandara 158

17

votes

1

answer

3k

views

What is the practical use of a /31 CIDR or 255.255.255.254?

ipv4 ip subnet

modified Jul 23 at 12:43 Cown 4,248

5

votes

4

answers

160

views

Packet Collison Avoidance

network packet-analysis packet-loss networking

modified Aug 13 at 15:04 Leon185 26

3

votes

5

answers

365

views

Is there a Layer 2 address advertising protocol?

mac-address layer2 layer3 lldp cdp

answered Aug 1 at 5:08 Peter Green 6,516

3

votes

2

answers

147

views

If TCP is a reliable data transfer method, then how come its checksum is not 100% reliable?

tcp checksum

modified Aug 4 at 5:30 John P 252

2

votes

3

answers

81

views

Do VLANs with no ACL assigned block inter-VLAN traffic by default?

cisco vlan acl

answered Aug 11 at 16:09 Jesse P. 75

0

votes

3

answers

124

views

Can Ethernet use fiber optic cables?

ethernet cable fiber

modified Aug 7 at 16:25 Faizul Kamarudin 1

6

votes

3

answers

131

views

How to connect 3rd party SFP to the cisco switch?

cisco switch sfp

answered Aug 1 at 21:03 Golgot 320

1

vote

3

answers

168

views

Can I see what happens when I run a DNS query?

dns

modified Aug 11 at 18:53 jonathanjo 4,442

1

vote

3

answers

209

views

Will Mode Conditioning Patch Cables help with this issue?

fiber netgear-prosafe patch-panel

modified Aug 13 at 20:18 Zac67 18.4k

3

votes

3

answers

156

views

How do I Connect 4 Router with 1 Switches?

switch router

modified Aug 12 at 6:08 trogdor 126

5

votes

1

answer

103

views

Max AS path to accept from peer?

bgp

modified Jul 23 at 17:30 Karl Billington 4,024

4

votes

1

answer

161

views

Filtering IP packets that contain IP options using ACL

cisco ip cisco-ios

answered Jul 25 at 19:02 Mike Pennington 25.9k

2

votes

2

answers

72

views

If the IPv6 address will be strictly based on EUI-64 logic then is there any real need of Neighbour Discovery Protocol?

ip ipv6 protocol-theory ndp

modified Aug 8 at 15:46 Ron Maupin♦ 55.6k

1

vote

1

answer

165

views

What's the meaning of `unit 0` and `family inet`?

juniper juniper-junos

answered Jul 27 at 11:51 Teun Vink♦ 9,770

1

vote

3

answers

59

views

Bypassing a Cisco Terminal Server Menu

cisco ssh

modified Aug 7 at 21:09 Matthew Bruna 6

2

votes

4

answers

75

views

What is a standard term that includes patch panels but is broader?

patch-panel

modified Jul 22 at 17:57 Ron Maupin♦ 55.6k

2

votes

1

answer

95

views

Why are DHCP ACK and REQ messages broadcast in Link Layer?

dhcp protocol-theory

modified yesterday jonathanjo 4,442

0

votes

3

answers

67

views

What's the meaning of `inet` and `inet6`?

network

answered Jul 31 at 5:29 el00ruobuob 99

2

votes

1

answer

65

views

Fix our Cisco switch overwhelmed by console logging

cisco cisco-ios cisco-catalyst cisco-commands troubleshooting

modified Jul 26 at 19:26 Mike Pennington 25.9k

1

vote

1

answer

65

views

What are the key advantages and disadvantages of NDP compared to ARP?

ip ipv6 arp network-discovery ndp

modified Aug 3 at 15:48 Ron Maupin♦ 55.6k

0

votes

3

answers

83

views

Would it be possible to split ISP connection via Switch?

switch isp

answered Aug 8 at 4:46 Trevor Butler 96

4

votes

2

answers

63

views

Network Ten LTE Hubs Into One Network

routing switching redundancy mobile

modified Aug 11 at 11:12 Mike Pennington 25.9k

5

votes

3

answers

90

views

What is the different between routing table and forwarding table?

routing ip-forwarding-table

answered Jul 31 at 11:34 hamid bayat 95

1

vote

3

answers

39

views

Interfaces named with `ge` represent what?

interface

answered Jul 27 at 18:54 Jatinder Brar 110

2

votes

1

answer

82

views

Diffrence between “wr” and “copy running config to startup config”

cisco cisco-commands

answered Aug 5 at 12:39 Cown 4,248

1

vote

3

answers

73

views

Why can't a host B act as a server, and accept TCP connections, when sitting behind a NAT?

ipv4 nat

modified Jul 25 at 7:53 Karl Billington 4,024

0

votes

1

answer

44

views

Factory Reset Cisco 3560: Stuck in loop

cisco cisco-ios cisco-catalyst

modified Aug 1 at 20:21 Marc 'netztier' Luethi 1,130

0

votes

2

answers

72

views

How does WAN work?

ip ipv4 ipv6 lan wan

modified Aug 9 at 14:20 AdamKalisz 136

0

votes

2

answers

88

views

SNMPv3 Failed authentification warnings (traps)

snmp cisco-ios-xr

answered Jul 30 at 12:11 ashraf 1

4

votes

1

answer

53

views

Can TCP session be closed by the server depending on the packet content?

tcp logging

modified Aug 8 at 16:54 Zac67 18.4k

2

votes

3

answers

51

views

How does any program identify the protocol header next from TCP?

ipv4 tcp wireshark

answered Jul 31 at 2:49 Peter Green 6,516

1

vote

2

answers

50

views

Why do we allow Mac-Address to be changed by software?

cisco mac-address security

answered Aug 8 at 21:21 Ron Maupin♦ 55.6k

2

votes

1

answer

58

views

Default QoS Behavior on Catalyst 3650/3850 Running IOS XE 16.3.6

switch cisco-catalyst qos ios-xe

modified Aug 3 at 6:07 Cown 4,248

2

votes

3

answers

53

views

How are the bits of packets not mixed together in queues in store and forward routers?

router

answered Jul 28 at 22:11 Ron Maupin♦ 55.6k

2

votes

1

answer

68

views

Quality of Service: Questions about input and output service policies prioritizing the same traffic

qos

modified Aug 6 at 15:42 Marc 'netztier' Luethi 1,130

0

votes

2

answers

41

views

Understanding how devices on a LAN/VLAN discover the existence of other local devices

network network-discovery

answered Aug 14 at 21:00 Marc 'netztier' Luethi 1,130

3

votes

1

answer

63

views

Internet Protocol version 4 (IPv4) padding?

ipv4 ip protocol-theory

modified Aug 1 at 3:48 Ron Maupin♦ 55.6k

0

votes

2

answers

62

views

Why does NAT keep track of each packet not just connections?

cisco nat dnat

answered Aug 9 at 10:38 jonathanjo 4,442

2

votes

1

answer

56

views

Packet vs Circuit switching

switch ethernet ip switching

modified Jul 25 at 10:47 jonathanjo 4,442

3

votes

1

answer

54

views

Is the first segment which is sent by the client in the 3 way handshake counted in the tcp congestion control?

tcp

modified Jul 22 at 16:24 John P 252

1

vote

2

answers

69

views

What are the collision domain reducing devices?

network

modified Aug 1 at 7:44 jcbermu 3,653

0

votes

2

answers

41

views

Why router interface need IP addresses while IP is constant during the journey?

router ip mac-address ip-address

answered Aug 6 at 10:37 jonathanjo 4,442

2

votes

2

answers

40

views

Cisco Router 1800 series doesn't route internet

cisco routing switching networking

answered Aug 9 at 18:36 Ricky Beam 20.6k

0

votes

3

answers

51

views

Do OSI and TCP/IP models use the same protocols?

ip tcp protocol-theory osi

answered Aug 4 at 17:23 Zac67 18.4k

1

vote

3

answers

50

views

What is the physical representation of the OSI model?

osi

answered Aug 10 at 23:40 Trevor Butler 96

1

vote

2

answers

80

views

spanning tree loop with bpdufilter on acces port but not on trunk?

cisco spanning-tree trunk rstp

modified Jul 27 at 16:05 Zac67 18.4k

1

vote

1

answer

48

views

Which is the POS port in the picture?

switch

modified Jul 31 at 14:03 jcbermu 3,653

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