00:02 all right so good evening
00:04 everyone just confirm you're able to
00:06 hear clearly and you can see the
00:08 screen yes sir yes sir
00:13 right so I have a recording for you from
00:16 last week has not been released as
00:20 yet it will be released soon but I need
00:23 to get an indication of what has been
00:25 happening so there were
00:28 four recordings that were made
00:32 available so please raise your hand to
00:34 indicate that you have watched all
00:52 four we not addressing me please put
01:05 20 all right that's seven out of
01:16 video yeah man there are four videos
01:24 watch he post YouTube videos watch
01:27 before I'm not hearing that was for
01:42 y yes so 9 out of 28 that's still awful
01:48 folks so I don't know what to
01:52 say how are you going to appreciate the
01:56 content if don't watch the
02:04 yeah we're having a conversation now so
02:06 how are you going to appreciate you know
02:28 videos you can put down
02:33 folks I think I wasting my time because
02:37 if I sit down and trying to record the
02:39 videos Before Time so that you can have
02:41 an advantage when you come to the class
02:43 and not going watch it
02:46 then stop we just come and do whatever
02:49 we can do during the class time and we
02:53 day sir I only watched the first two
02:56 videos from the first week you you told
03:00 us to watch them I didn't know you
03:03 anymore went through this last week they
03:08 showing and make sure no but you could
03:20 two students have a responsibility you
03:23 know I have a responsibility to deliver
03:26 the content you have a responsibility to
03:30 interact with the content so that you
03:33 knowledge I'm talking to the entire
03:38 class because you know what happen when
03:41 we teachers don't show up for
03:47 and one of message and boy teacher
03:52 show so if the effort is being put into
03:56 creating content for you then you you
03:59 need to be interacting with the content
04:02 it cannot be that well within a week
04:05 three you have four videos four
04:08 recordings and nine out of 28 person at
04:13 the time when I lost saw it indicate
04:20 four that is totally
04:24 unaccept anyway moving
04:31 don't yeah everybody
04:36 that free if you don't do what you need
04:49 work all right moving
04:53 on create a network on the
04:56 flight for those who would have
04:58 interacted with with the
05:03 then it's supposed to make sense to you
05:06 I'm going to ask you to assist me in
05:08 terms of creating this
05:12 network so I want to grab two machines I
05:16 want to put them on a
05:18 switch and I want to ensure that them
05:22 with I'm going to do that in this
05:25 environment the simulator and we want to
05:28 ensure that the connectivity between
05:30 both devices are actually up and
05:33 running so raise your hand I knowledge
05:38 you you unmute your mic it kind of give
05:41 me some ideas as to how we are going
05:54 aan yes sir good evening so
05:57 um well sir based on knowledge so far it
06:00 depends on how you want to configure
06:04 those two devices on a switch now sir if
06:07 it's a layer two switch then that would
06:10 mean they being configured on a Land
06:12 network or something of the sort and
06:15 then know sir you can either configure
06:17 them by static IP addresses or by one
06:20 one minute as on a demonstration we're
06:22 doing so more you tell me do BU this
06:26 network we can all see it in operation
06:28 that's what I'm ask
06:30 oh okay sir all right so first thing um
06:32 you would go to the devices section and
06:41 switcher so devices section you're
06:44 talking devices and devices yes sir are
06:48 you're talking network devices which one
07:02 uh the network devices sir and then you
07:07 the on the switch port on the router
07:12 sir and then you would select the 2911
07:23 2911 oh my bad sir that's actually a
07:26 rotor um number um 2960 sir
07:32 2960 yes sir and then from there on out
07:36 uh you would select two pieces from the
07:39 the devices section
07:43 devices two things here that's devices
07:48 devices um the other one sir not the one
07:52 on right now end devices end devices yes
08:00 um so I look like you're a bit different
08:06 mine maybe I can't scoll oh oh yes sir
08:10 yeah so it um so you would drag up two
08:17 switcher and now what you can do you
08:20 click on on that that lightning like
08:23 icon to um go into the connections no
08:27 sir right here I found
08:30 one minute one minute
08:35 chance all right sir because so
08:47 orill are you sir all right kahill yeah
08:52 connections yeah so we would we would
08:55 use um I think the copper crossover
08:59 upper crossover all right so this
09:02 one no no no the one to
09:06 the the copper straight
09:09 through this one yes sir coer crossover
09:15 yeah and then you press the
09:18 router yes this which router oh the
09:32 that the switch sir my bad oh so yeah
09:36 why you say now yeah press on the switch
09:40 and and connect it or fast ethernet fast
09:45 EET and connect it to pc1 and then
09:57 right and then you connect that other
09:59 one connect the other one all right
10:02 thanks very much all right sh I
10:06 see sir just a question um if I recall
10:09 correctly do we really need a switch if
10:12 you're trying to communicate between two
10:14 pieces all right so the question to the
10:16 class do we need a switch if we trying
10:18 to communicate between two
10:20 pieces what are your
10:25 thoughts so I know there's Wireless um
10:35 connection why could we just use the
10:38 wir based on the crossover wir why
10:40 couldn't we just use that why couldn't
10:43 we just use what the crossover wires
10:45 only the crossover wires only what you
10:49 mean between the two the same wires here
10:52 cable why couldn't we just use that if
10:54 you're trying to communicate with them
10:57 all right so so I still asking the class
11:01 question I don't know the answer to that
11:04 so the class going answer that go ahead
11:07 um all right I'm going to allow Scott to
11:10 go this time go ahead Scott uh sir if
11:13 you were just connecting the two PCS
11:17 then you could just use the crossover
11:19 cable but or you would use the crossover
11:21 cable but because you said you're trying
11:23 to build out a network then you're going
11:26 to need the switch to be able to connect
11:28 more than just the two PCS all right
11:32 very good thanks for that Scott so
11:36 sa I did indicate that we're building
11:40 network if and I'm starting with two
11:44 pieces but the network can grow so I
11:47 might end up with 10
11:49 pieces so it makes sense for us to
11:52 design the architecture so that it can
11:54 scale it can grow and if we are going to
11:57 connect up each of the devices together
12:01 straight then that's not going to be
12:03 scalable because it means that for every
12:05 machine we're going to need to have
12:07 multiple Nicks what's a Nick
12:12 CL network network interface card it's a
12:16 network interface card good me going to
12:19 need multiple network interface card so
12:22 that we can question would it be wrong I
12:25 can finish I can't finish I can't finish
12:28 sorry Yeah man so what we're saying is
12:32 that if we are going to be connecting
12:35 all of these machines together straight
12:38 top then we're going to require multiple
12:41 Nicks so that we can foster the
12:44 communication between a device and
12:49 devices when we use a switch it
12:52 minimizes the amount of um Nicks that we
12:55 are going to need because remember the
12:57 switch going to come with Nicks
12:59 that's why we end up having these
13:01 Sports all right and it's also going to
13:05 streamline the communication as we going
13:07 talk about a little bit
13:14 aan uh yes sir so um I'm wondering
13:18 something when you say for all devices
13:21 we have to communicate with each other
13:23 you would need multiple Nicks now since
13:25 each port on a switch acts as a sort of
13:29 broadcast medium hold on hold on hold on
13:32 you have to take what me say in
13:35 context question was asked a while ago
13:38 and I answered that question in a
13:41 particular context so the question was
13:44 asked can't we just connect up the
13:46 machines directly to each other and I'm
13:49 answering in that context so in that
13:53 switch oh okay sir all right oh well I
13:58 guess my question is a bit different sir
14:00 what I'm really asking is that um are
14:02 Nicks and vand the same thing sir no
14:06 they are not the same thing so don't we
14:10 V right about Nick network interface
14:14 card network interface card are going to
14:16 have those ports those slots that allow
14:20 us to connect the RJ45
14:29 um I just wanted to try after Scott is
14:37 finished I think Scott finish right
14:42 Scott yes sir come on finish so what to
14:47 try okay so I just want to try one of
14:50 the pieces I'm new to um Cisco pocket
14:57 um I've been here since day
15:02 yeah all right so first I'm thinking is
15:06 we turn on uh let's just do I have PC
15:10 Zer and PC one so first I'm going to
15:17 zero so click on sorry can you hear me
15:21 yeah M but them already on okay all
15:23 right so now that it's on Yeah man so
15:26 tell PC one because already
15:31 PC all right so we're going to check for
15:34 the IP address and the ma address we not
15:38 reach there so oh okay oh sorry the
15:41 connection is with the connection sorry
15:44 I didn't realize that wasn't done if we
15:46 don't one minute if we don't connect it
15:49 we could have put IP address from now
15:51 till next year not true true yeah yeah
15:54 mhm so I'm thinking we do another Couer
15:59 so click on the Couer
16:02 crossover and click
16:09 switch and we're going to do fast EET
16:12 to and then click on PC
16:16 one and the fast EET
16:23 and all right so some question I need to
16:31 when do we use a crossover
16:40 cable go ahead Scott say your hand sir
16:42 when when you're connecting um like
16:45 devices when we conc devices that belong
16:50 the good so PC to PC we use a crossover
16:59 yes sir yeah they belong to the same
17:04 family so what about a PC and a switch
17:07 are they in the same
17:09 family that's a question to the
17:13 class yes because of how um the the
17:19 commun the receiving and the
17:21 transmitting I don't remember if it was
17:23 in the video or if it was in class that
17:24 you said it depending like the port
17:29 they receive and you're saying yes yes
17:33 yes yes all right so who else agree that
17:35 is yes or does anyone have a different
17:39 Viewpoint sorry sir not a switch I meant
17:41 a router PC and a router that's what I
17:43 meant to say all right a switch we talk
17:47 now question is is a switch and a PC in
17:52 the same family that's the
17:54 question sir can you hear me
18:00 niim I don't think it's in the same
18:03 family I think don't you
18:05 know they're not in the same family I
18:11 PES the PC and the switches can be
18:13 connected to form one network and but
18:16 they serve different roles but are they
18:20 family no sir right now
18:26 sure yeah man we vote
18:28 uh I said no sir yeah man you say no and
18:32 Steven say yes okay sir what's the
18:37 verdict we going vote see what the
18:41 class so all those who believe that the
18:44 PC and the switch are in the same
18:59 all right so two person out of
19:01 39 thank you all those who believe that
19:05 the PC and the switch are in different
19:26 39 all right so that's that's that's
19:29 couple more some people can't raise them
19:31 hand so put it in the
19:34 chat all right so but but Ste Steve
19:39 St vot time because it was a
19:45 mistake it was a mistake at first so uh
19:49 what I meant to say was the port that
19:52 the computer that the PC
19:55 would receive and transmit data on are
19:59 um different ports than the switch would
20:02 receive and transmit data on all right
20:06 ports not ports pins yes sorry that's
20:10 what I me yes yeah I put all them some
20:20 video watch video them so
20:24 therefore if it is that the PC and the
20:29 switch are in different families then
20:32 what kind of cable we supposed to be
20:40 using so you're supposed to be using the
20:44 Straight supposed to be using straight
20:47 through so why we using a crossover here
20:55 sir yeah so that's something that we
21:00 don't tell me straight through tell
21:09 sir so we draw for a crossover because
21:15 PC receives data on pin one and pin two
21:20 and the switch rece so the switch
21:23 received data from the
21:26 computer oh I think I get no man so what
21:32 saying make up your
21:34 mind all right connect them using one
21:38 minute here the question should we
21:39 connect the PC on the switch with a
21:42 crossover cable or a straight true cable
21:49 St on with a crossover because the the
21:53 four pins that are in the RJ45 connector
21:56 are um yeah 1 2 3 and six based on what
22:01 you said in the video right and um the
22:04 PC transmiss data on pin one and pin two
22:08 the router the switch sorry transmits
22:11 data on pin one and pin two the PC Rees
22:14 data on pin three and pin
22:18 comp okay might end
22:22 upus I ask a simple
22:29 actually saying it in the chat if the
22:31 devices are similar what kind of cable
22:37 over so the question then is is a switch
22:42 and a PC are the similar devices yes or
22:46 no type in the chat folks let me go the
22:50 question again is a switch and a
22:53 PC similar devices do they belong to the
22:56 same family I'm seeing most people
22:59 saying no so if they are not in the same
23:03 family then what kind of cable are we
23:04 going to use to connect
23:06 them straight through straight through C
23:10 all right so you not have to think about
23:14 pin one and pin two and pin three and
23:16 pin six right now that a
23:19 confusion the rule of thumb is similar
23:22 devices crossover cable if they are not
23:26 similar straight through
23:28 and I think in the recording you should
23:31 have seen a table that tell you which
23:33 ones are in the same family so
23:38 go yes folks yes or no yes sir all right
23:42 good excellent so it's important that we
23:46 watch the recordings it's
23:48 important because it is that information
23:54 using so I've put another switch there
23:58 and I'm going to quickly throw
24:09 crossover and right away as we put them
24:11 on you see that it's R
24:20 cable that's the crossover don't going
24:25 don't yeah crossover cable going to the
24:30 working let me use a straight through
24:37 cable sir question notice one minute one
24:40 minute one minute notice that as we put
24:43 it on it start to get green and now the
24:45 switch is waiting for the communication
24:48 to take place for it to be fully green
24:52 so just by virtue of what we're seeing
24:54 on the screen we realize that all right
24:58 the crossover table cannot
25:06 me mention something about
25:08 scalability yes like based on the model
25:11 that we have on screen I feel to
25:14 understand like how would we scale
25:20 simple a machine what scalability mean
25:24 to you let me ask that
25:26 first SC me say get bigger all right
25:30 yeah so we can easily add machines or
25:33 remove machines so is how simple is it
25:36 to add a machine well we grab a
25:45 cable attach the cable to the PC attach
25:50 switch just by doing that we have added
25:53 another machine all we have to do now is
25:56 go and configure it from a layer three
25:58 perspective from an IP perspective so
26:03 communicate and this switch happens to
26:09 ports so if you look on the listing
26:12 there you see it go down from one
26:14 straight down to 24 so this switch have
26:16 24 ports which mean this switch can
26:19 support 24 machines
26:22 connected okay all right so let me Che
26:25 the the hands in the way that I see them
26:30 Scott um yes sir well I was going to I
26:33 was going to add something in terms of
26:35 um scal scalability being explained sir
26:39 so basically it's the ability of having
26:41 an existing Network and you're able to
26:44 add more devices without affecting the
26:47 original Network infrastructure right
26:50 sir that's correct all right sir so um
26:54 apart from within the the land like
26:57 connection like what we're basically
26:58 constructing right now sir um how much
27:01 ports would a with a layer three switch
27:04 or a multi switch have sir every switch
27:07 can have different number of
27:09 ports all right you buy a switch based
27:12 on the amount of ports you want and the
27:18 Scott okay sir so I know that we're not
27:21 supposed to use the crossover cable but
27:22 I wanted to know why is it that if it's
27:25 wrong it's green in the first diagram
27:31 question excellent question and so we
27:35 can address that question so if you look
27:47 2960 so which one created first which
27:54 2950 so the 2950 is what an original
27:58 switch is actually going to do but you
28:01 know how we humans are we like to
28:04 improve things as time go by so we have
28:08 created different types of switches that
28:10 are now a little bit more intelligent
28:13 meaning you can connect it with either a
28:16 straight through or a crossover and it
28:19 will detect the type of cable and make
28:23 the necessary adjustment so that you can
28:26 properly so that's why in my
28:28 demonstration I want to use the
28:31 2950 and I think that's what I would
28:34 week because that truly demonstrates how
28:39 real original switch
28:43 work you got that so now most of the
28:47 devices that you are going to
28:49 have um in in organizations if there are
28:52 newer devices any one of the cable that
28:55 you're plug in will tend to work work
28:57 because the the device will autoc
29:00 configure itself to recognize that type
29:03 of cable and use it
29:05 appropriate I hope that makes sense to
29:08 stock yes sir it does good yes
29:13 Stephen sir um where the confusion comes
29:16 in for me is um when you ask the
29:18 question directly in class here you know
29:21 it's easy to pick the answer but in the
29:22 video you did say devices that transmit
29:25 and receive on the same on
29:28 you know the same pins are the same or
29:31 similar and devices that don't are
29:33 different so that's where the confusion
29:36 kind of came up for me and then you gave
29:38 an example in the video as well I was
29:41 just saying like I get what you're
29:42 saying but I was just saying that's
29:43 where it kind of get confusing for me a
29:47 bit Yeah but but devices that transmit
29:49 on the same thingsin are in the same
29:51 family if I said something else in the
29:54 video then that would have been an
29:56 error okay okay yeah so devices that
29:59 transmit on the same pins are in the
30:02 same family so a PC is going to transmit
30:06 two and that is why if we are going to
30:09 tie them together directly we need to
30:12 cross the cable over so that the
30:14 transmit of one goes to the receive of
30:18 the other all right so let me tell you
30:20 what I saw in the video so the PC transm
30:23 one minute one minute one minute
30:25 whatever is in the video if if it's
30:27 I'm clarifying now but once you
30:30 understand what I'm
30:31 saying then then we're good so if
30:33 there's an error in the video then we
30:35 address that and we'll move
30:37 forward so class if it is that the
30:43 devices transmit on the same pins then
30:46 they are in the same
30:48 family I hope we're good with that go
30:53 Russ yes sir I was saying um would so
30:57 two questions R first one would you
31:01 recommend just as a default just use the
31:04 right cables regardless absolutely that
31:07 is why I'm going go through the the
31:08 trouble of telling about
31:10 it all right cool question because when
31:14 you go into an organization you're not
31:16 guaranteed to only find new switches in
31:20 there so you have to know how you can um
31:24 navigate if when you look you realize
31:26 that this is a old switch so the rule of
31:30 thumb is you must know that
31:33 for um switches to PC you're going to
31:36 use a straight through and that's what
31:41 question all right so for the second
31:43 question sir since it's doing data
31:45 conversion does that necessarily mean
31:47 that it's going to make the network
31:53 slower that's a good question um I think
31:59 oh so it does be slower but not at a
32:01 rate that you can really identify yeah
32:03 it might be a little bit slower but yeah
32:05 it going to be negligible because yeah
32:07 there's going to be some conversion so
32:09 that conversion must come at some cost
32:11 but it's going to be
32:19 aan uh yes sir well um question sir in
32:23 terms of a network becoming slower um
32:26 does it is it is it factored by things
32:30 like um the scalability of the network
32:33 the capability of the network to um
32:35 transmit and receive data at the same
32:37 time in real time and stuff like that
32:39 sir only things it depend on that's
32:42 beyond what we're trying to accomplish
32:53 right so let me remove this cable and
32:56 put on on the right
33:16 table all right good so we have
33:21 configured that switch let bring bring
33:30 picture and now we want to ensure that
33:36 4 so what do I now need to
33:39 do I'm raise hand again so I can
33:41 acknowledge you and then you just unmute
33:52 kahill all right sir so first you would
34:04 right no sir you're not seeing it all
34:08 right give me a minute stop and
34:29 click on the PC you seen it now yes sir
34:36 nextop and then you go in um IP
34:44 configuration you assign
34:46 it address under the IP V4 all right so
34:50 under the ipv4 we're giving it an
34:52 address and it's going to be a static
34:54 address meaning we're putting it in
34:56 manually so I'm going to use
35:06 75.3 okay sir then you go back onto
35:17 desktop and then come out of desktop and
35:20 um add IP address to the others as well
35:24 okay so we need to put on IP addresses
35:26 on the others so let's go to IP config
35:28 that's the IP address please note
35:31 it you need to tell me what kind of
35:35 addresses I'm going to use on the other
35:38 one so once you have noted this IP
35:40 address just type any in the
35:53 chat all right so we're seeing some
35:59 this all right so we need to configure
36:04 one yes sir going to
36:07 dextop and I need somebody else apart
36:11 from kah now to to tell me what I'm
36:17 type all right so I'm seeing some hands
36:23 minute I said apart from kahill so
36:29 ahead all right sir so the first one
36:32 right so we can just
36:34 put for this one sir 192
36:52 right and somebody else know apart from
36:55 Russ wait sir that was PC3 not pc4 oh
37:00 that was PC3 oh sir I thought that was
37:16 ahead you for that one you can
37:20 put 192 168 168 75 that what
37:28 all right and notice all you using 1921
37:32 168.75 why not 1 92.1
37:43 16876 I think 76 is a better number than
37:46 75 so to sticking with 192 that 168
38:06 there because those three numbers are
38:07 the numbers that are used to identify
38:09 the network itself and how you come to
38:13 conclusions sir because in the subnet
38:16 mask if if you notice um the three
38:19 numbers in the three spots you have
38:22 255 which means that those three numbers
38:26 are used by the network or used to
38:28 identify the network all right thank you
38:30 very much St so we need to look at the
38:32 subnet mask and the simple way is once
38:35 we see the number 255 under that column
38:40 then it means that that number of the IP
38:42 address is going to be associated with
38:46 the network ID now I think I've said
38:49 several so I hope that it finally
38:52 resonate with everybody those who don't
38:55 watch the video them only need to go
39:00 all right so I think we have IP address
39:04 on all of them now we want to see if PC2
39:09 can communicate with pc4 so who can walk
39:15 that apart from kahill we want some more
39:19 people more people in class I respect I
39:23 respect the contribution kah but you
39:27 try wake up the other people
39:30 then sir you would you would ping the
39:43 um we click on the click on the PC cck
39:48 PC going to command prom going to
40:13 all once again thanks for your
40:18 contribution yeah R
40:47 758 right get some Reply look like that
40:59 good so PC2 communicate with pc4 because
41:04 pc4 IP address was 1
41:10 75.8 yeah so we're just communicated
41:15 PC all right wonderful LK I saw your
41:21 earlier no sir it was to answer that
41:24 pink question all right great
41:29 Russ yes sir um is it the case that I
41:32 have to Ping the the PCS
41:38 individually so I want to as opposed
41:42 to uh no as opposed to just doing like a
41:46 single line prompt that does the Ping
41:49 for all the P um for all the computers
41:51 and you see the relevant replies why
41:53 would one minute one minute why would
41:55 you want all the computer at the same
41:58 time all right so for example I just say
42:02 we just finish up setting up the network
42:04 for the 2950 under the 2950 switch so we
42:08 want to Ping all like so we had 10
42:11 computers and we don't want to go in and
42:12 ping each and every one with just like
42:15 one line and you'll see the relevant
42:17 replies and we'll be able to buy the IP
42:19 address notify which computer isn't
42:22 actually replying as it should if it
42:27 never I've never heard of
42:30 that't exist but I've never heard of
42:33 that I just wanted to
42:38 yeah all right good now let's go to the
42:43 switch and let's go to the command
42:49 interface I think we need to enable the
42:52 switch and then we say show MK
42:58 address right spell address for
43:06 right if it's wrong I am not a English
43:12 right and what information do you see
43:16 inside of the the ma
43:19 address what what this telling
43:29 R all right so Sor if I remember
43:31 correctly these are the on Mac address
43:34 these are the names for the NX um for
43:42 know oh you not hearing me properly it s
43:47 ahead all right sir so we have
43:52 address um Mac address column those are
43:55 the name for for the N the network
43:57 interface cards you said the name for
44:04 well well I guess you can see the MAC
44:07 address or what was okay so it's the MAC
44:09 address of the N yes
44:12 yeah all right thanks much I think I saw
44:15 somebody else who had
44:25 person I was going to say the same thing
44:27 along with ports that they're connected
44:29 okay so you're adding something else
44:32 yeah with the ports so we have two
44:34 things we have the MAC address of the
44:38 machine and we have the port of the
44:41 switch that the machine is connected
44:48 important so we we know that we can send
44:52 from the device that is on Port one
44:56 straight to the device that is on Port
44:58 three and the data goes straight away to
45:01 machine because that information is
45:04 inside the MAC address
45:08 table is this Mac address table missing
45:15 anything yes it's missing a
45:27 two three I think if I remember
45:29 correctly he who three I
45:33 think so let us double check
45:54 to if we go I just hover over the switch
45:58 you will realize that it it tells you
46:01 which one of the ports are in use notice
46:04 it say up up up for one two and
46:07 three want you to note that
46:11 folks you seeing that
46:13 right yes sir maybe so yeah so the
46:18 switch is telling us that these
46:21 devices are connected to Ports one two
46:26 we can also have a look at the MAC
46:31 address for a particular
46:34 so let me go to the to PC3 because we're
46:39 saying that that is the one that we're
46:41 not seeing inside of the
46:44 list go to command prompt what is the
46:46 command that will allow me to see the
46:51 address IP config and then I think the
46:56 back slash and all that's the forward
46:59 slash forward slash right and then all
47:05 good so right here where it say physical
47:10 address is where we saying the physical
47:13 address or the MAC address for this
47:15 particular PC which is
47:19 PC so let us also just note the first um
47:23 three numbers I think that should be you
47:29 0060 let us go back to our
47:32 switch and if we look at the MAC address
47:34 we're not seeing 060 don't it we're not
47:39 one so it mean that that
47:47 um give me a second let me save
47:57 yeah so what we're saying is that the
47:59 information for this has not yet been
48:03 S let's try and get it into the switch
48:07 you remember what the IP address for PC3
48:11 is if you don't see it right there 1
48:19 75.5 so we're going to Ping
48:23 that so just go to an arbitr machine in
48:35 75.5 ping it getting some
48:41 responses let's go back to the
48:47 switch let's show about the MAC address
48:53 table and are you seeing any anything
48:56 new inside of the the
49:02 switch yes um the ports configuration
49:06 changed all right so now we're seeing
49:09 that we have Port one we have Port two
49:12 and we're seeing the MAC
49:14 address yes so this Mac address table is
49:19 going to keep on updated and that's why
49:22 you see a type here that says
49:24 dynamic so each time we communicate with
49:28 devices then the Mac um address table is
49:32 going to be updated there's some El I
49:34 want to show you very very quickly we
49:36 pretty much out of time I want to go to
49:41 PC which we have been using and I'm
49:44 going to type a command
49:52 ARP right why is this
50:00 p-p guess I'm having a an old
50:07 moment just give me two second let me
50:58 a and if you look inside the ARP
51:07 PC3 remember that the IP address for PC3
51:11 is five it end with five but we had just
51:15 communicated with PC2 which has an IP
51:26 so as we keep on communicating with
51:28 machines there's going to be some
51:31 information that is going to be stored
51:32 on the machine itself that will indicate
51:37 which IP address maps back to which
51:40 physical address and this is something
51:42 that we're going to talk about in our
51:44 next session so that this becomes clear
51:47 because there a lot of things which are
51:53 your devices can communicate on the
51:56 network and what we will do next time is
51:58 we're going to drop a router on this so
52:01 that we can communicate between two
52:03 different um networks and then we talk
52:07 about what a land is and sort of
52:11 consolidate the knowledge and bring
52:12 everything back to a common ground so
52:17 any quick question before we
52:27 no question so if you understand what we
52:29 have gone through folks
52:34 please um please indicate in the say
52:45 you all right great so most people seem
52:49 to understand so I'm going to release
52:52 both this video and the the one
52:55 previously by about Wednesday has to be
52:58 processed and all of them thing the
53:00 first I release it and then um you
53:03 should be good to go please folks need
53:05 to watch all of the
53:09 recordings right so take here um wait
53:12 one minute one minute one minute I think
53:18 um so the switch only shows the active
53:22 what you mean by that um Jada
53:26 sir when we were as showing the MAC
53:29 address table it only showed two of the
53:31 active PCS the ones that we just
53:41 ped yeah so we we do this now and they
53:44 saying what now so I was asking if the
53:48 when we show The Mark address table it's
53:50 only going to show the two active PC so
53:53 the two ones that were most recently
53:56 communicating oh no it's supposed to
53:58 have all of them oh that's the question
54:03 oh um these things have glitches here is
54:07 a simulator but typically we have all of
54:11 them okay great thank you sir Yeah man
54:20 that lost the link to the amazing and
54:23 informative YouTube channel it on the
54:27 side so I don't know how you lose it
54:35 mood yeah man take but the player list
54:39 um link is on the M
54:42 side all right so that's us for for for
54:45 for today folks so take
