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Network class - October 1...

Network class - October 19th [Community Learning Week •Phase 7] Activity

END Latest reply: Oct 20, 2021 07:30:42 2149 87 44 0 2
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【Answer】1. A    2. B    3. ABCD    4. A    5. C

【Winner】faojen,  kunthea,  Dia0205,  Malik3000,  DKetrari

----------------------


Hello, everyone!

Join the Community Learning week Ethernet service basics of transmission network!

1

Network class learning time of this phase: October 18th – October 23rd.
Answer time of this class: October 19th, 8 AM - October 20th, 4 PM (UTC+0).


Class topic

Post 1. GFP, VCAT, and LCAS

There are three key technologies in Ethernet: GFP, VCAT, and LCAS. Generic framing procedure (GFP) is a multiplexing technique defined by ITU-T G./041. The VCATA IS a virtual concatenation technology. link capacity adjustment scheme(LCAS) makes the link bandwidth more flexible...More


Post 2. Calculate the bandwidth utilization from the RMON data

RMON data is a performance platform to monitor a packet transmit and receive. It captures a number of packets in a type of frame size, a total packet, bad packet, oversize packet, FCS (aka CRC), Jitter, broadcast, unicast, and so on...More


Post 3. How to handle Ethernet service degradation

The Ethernet service deterioration indicates that the Ethernet service is abnormal. For example, the network access speed is low, the equipment delay is long, the packet loss occurs, or incorrect packets exist in the received or transmitted da...More


Post 4. What is the difference between VLAN, C-VLAN, and S-VLAN

The QinQ technology provides a cheap and easy Layer 2 (L2) virtual private network (VPN) solution. With the VLAN stacking and nesting technology, the data packets carry two VLAN tags at two different layers to identify different data packets...More


Post 5. How to Configure 10GE Services

According to IEEE 802.3ae, compared with 10GE LAN services,10GE WAN services involve an additional process in which signals are encapsulated into standard SDH/SONET frames. In other words, 10GE WAN services are processed in a similar way to how STM-64 services are processed in a WDM/OTN system. The most direct difference between 10GE LAN and 10GE WAN services is that they have different signal rates...More


Click to learn: >>>  Pevious class - Routing & Switching    Next class - Routing & Switching

    *1. The LCAS protocol is specified in ITU-T G.7042. It allows on-demand increase or decrease of the bandwidth of the virtual concatenated grioup in a hitless manner This brings bandwidth-on-demand capability and survivability of data traffic. (Single choice)

  • A. True
  • B. False

    *2. When using RMON data to calculate bandwidth utilization, what do we do if there is no sampling period provided? (Single choice)

  • A. A.The bandwidth usage cannot be calculated.
  • B. We can consider it as 1 second sampling period.
  • C. We can consider it as 2 second sampling period
  • D. We can consider it as 5 second sampling period.

    *3. What are the causes of Ethernet service deterioration? (Multiple choices)

  • A. The service volume is large, the bandwidth is insufficient or sufficient, but the service burst volume is large.
  • B. The peer device does not respond when the traffic is heavy.
  • C. The port attributes do not match the attributes of the peer device. As a result, the port works abnormally.
  • D. The physical layer is faulty.

    *4. QinQ tunneling adds the same outer tag to all frames received on a QinQ port. The VLAN-based QinQ stacking technology can add outer tags to frames on QinQ ports based on different inner tags and support refined VLAN classification. (Single choice)

  • A. True
  • B. False

    *5. What is the signal rate of 10G LAN services? (Single choice)

  • A. 10.71 Gbit/s
  • B. 10.51 Gbit/s
  • C. 10.31 Gbit/s
  • D. 9.95G bit/s

The post is synchronized to:  Learning Week

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2#
liqiang185
Admin Created Oct 19, 2021 07:43:29

@Malik3000 @alopez @IndianKid @umaryaqub @LuizPuppin @shakeela @NTan33 @smileymind @Saqib123 @yogijain @lucian2003 @Unicef @WalidNawar_PDAC_MVE @BAZ @Ihteshamraza @sohaib.ansar @daniellima @S_Noch @chantha @Navin_kay
@Faridrami @Herediano @abood_1419 @VinceD@19muaz19 @Addy786 @Adriale @Ahmed_Osman @AJR @alkaseer @ankush @Aroot @azkasaqib @bagic @BAZ @daniellima @DawoodShah @Ddkompik @Dragos_Voicila @E.DR_91 @EdelChino @EglymarB @Elecha001 @ernesto_cupet6 @fargat @felixqperez @Fernando_Ag @Floyd_42 @Fuat @futurework @gabo.lr @Galeober @GDCP @Harihar_Shrestha_new @HaseebAkhtar @huriuraz @HWmah @IndianKid @jas_heer @JNL @JT_UPDATE @kakuye @Kolli @KorayK. @krishnkant @Len_non @little_fish @LSA @lucian2003 @LuizPuppin @Luke_WiFi_Walker @Majdi.Chebil @Marcelo.Toledo @Mglsmn @Moemyint18 @Mohamed_Ahmed @MPatel @mr_anderson @msgabs @Nawwaf.sa @NetEng.JA @niko_makoni @olutaiwo07 @orlan_ortiz @ozan @phuta @RanaShakeel @realtm7 @Renan_Brasil @rganacim @RoxES @Rumana @safi1012 @sam_san @Sapte @Saqib123 @Shalapy @Shayan_ITMan @Siyamraj @smileymind @sonam228 @thisu @umaryaqub @Unicef @user_3015189 @user_3333671 @user_3445655 @user_3754066 @user_3926329 @user_3984285 @user_3998471 @user_3999909 @user_4000907 @user_4082249 @user_4082499 @user_4101251 @user_4115707 @user_4183415 @vagkaefer @Vien @vitoko @Vlada85 @WalidNawar_PDAC_MVE @wissal @www_13290524951 @yogijain @zaheernew @Zahid_27 Come and enjoy the new learning party!
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3#
Unicef
MVE Created Oct 19, 2021 07:56:35

Not yet start?
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liqiang185
liqiang185 Created Oct 19, 2021 07:58:29 (0) (0)
Start right away. good luck!  
Unicef
Unicef Reply liqiang185  Created Oct 19, 2021 08:08:48 (0) (0)
 
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4#
Vien
Created Oct 19, 2021 08:08:17

1. The LCAS protocol is specified in ITU-T G.7042. It allows on-demand increase or decrease of the bandwidth of the virtual concatenated grioup in a hitless manner This brings bandwidth-on-demand capability and survivability of data traffic.(Single choice)

A. True

2. When using RMON data to calculate bandwidth utilization, what do we do if there is no sampling period provided?(Single choice)

B. We can consider it as 1 second sampling period.

3. What are the causes of Ethernet service deterioration?

A. The service volume is large, the bandwidth is insufficient or sufficient, but the service burst volume is large.
B. The peer device does not respond when the traffic is heavy.
C. The port attributes do not match the attributes of the peer device. As a result, the port works abnormally.
D. The physical layer is faulty.

4. QinQ tunneling adds the same outer tag to all frames received on a QinQ port. The VLAN-based QinQ stacking technology can add outer tags to frames on QinQ ports based on different inner tags and support refined VLAN classification.(Single choice)

A. True

5. What is the signal rate of 10G LAN services?(Single choice)

C. 10.31 Gbit/s
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5#
Unicef
MVE Created Oct 19, 2021 08:08:36

1. The LCAS protocol is specified in ITU-T G.7042. It allows on-demand increase or decrease of the bandwidth of the virtual concatenated grioup in a hitless manner This brings bandwidth-on-demand capability and survivability of data traffic.(Single choice)

A. True

2. When using RMON data to calculate bandwidth utilization, what do we do if there is no sampling period provided?(Single choice)

B. We can consider it as 1 second sampling period.

3. What are the causes of Ethernet service deterioration?

A. The service volume is large, the bandwidth is insufficient or sufficient, but the service burst volume is large.
B. The peer device does not respond when the traffic is heavy.
C. The port attributes do not match the attributes of the peer device. As a result, the port works abnormally.
D. The physical layer is faulty.

4. QinQ tunneling adds the same outer tag to all frames received on a QinQ port. The VLAN-based QinQ stacking technology can add outer tags to frames on QinQ ports based on different inner tags and support refined VLAN classification.(Single choice)

A. True

5. What is the signal rate of 10G LAN services?(Single choice)

C. 10.31 Gbit/s
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6#
Mouh_Yadj
Created Oct 19, 2021 08:32:55

1. The LCAS protocol is specified in ITU-T G.7042. It allows on-demand increase or decrease of the bandwidth of the virtual concatenated grioup in a hitless manner This brings bandwidth-on-demand capability and survivability of data traffic.(Single choice)

B. False

2. When using RMON data to calculate bandwidth utilization, what do we do if there is no sampling period provided?(Single choice)

B. We can consider it as 1 second sampling period.

3. What are the causes of Ethernet service deterioration?

A. The service volume is large, the bandwidth is insufficient or sufficient, but the service burst volume is large.
B. The peer device does not respond when the traffic is heavy.
C. The port attributes do not match the attributes of the peer device. As a result, the port works abnormally.
D. The physical layer is faulty.

4. QinQ tunneling adds the same outer tag to all frames received on a QinQ port. The VLAN-based QinQ stacking technology can add outer tags to frames on QinQ ports based on different inner tags and support refined VLAN classification.(Single choice)

A. True

5. What is the signal rate of 10G LAN services?(Single choice)

C. 10.31 Gbit/s
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7#
DKetrari
Created Oct 19, 2021 08:34:39

1. The LCAS protocol is specified in ITU-T G.7042. It allows on-demand increase or decrease of the bandwidth of the virtual concatenated grioup in a hitless manner This brings bandwidth-on-demand capability and survivability of data traffic.(Single choice)

A. True

2. When using RMON data to calculate bandwidth utilization, what do we do if there is no sampling period provided?(Single choice)

B. We can consider it as 1 second sampling period.

3. What are the causes of Ethernet service deterioration?

A. The service volume is large, the bandwidth is insufficient or sufficient, but the service burst volume is large.
B. The peer device does not respond when the traffic is heavy.
C. The port attributes do not match the attributes of the peer device. As a result, the port works abnormally.
D. The physical layer is faulty.

4. QinQ tunneling adds the same outer tag to all frames received on a QinQ port. The VLAN-based QinQ stacking technology can add outer tags to frames on QinQ ports based on different inner tags and support refined VLAN classification.(Single choice)

A. True

5. What is the signal rate of 10G LAN services?(Single choice)

C. 10.31 Gbit/s
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8#
Malik3000
MVE Created Oct 19, 2021 08:44:10

Hello ,

Answer as follow :


Q1=A

Q2=B

Q3=A,B,C,D

Q4=A

Q5=C

 

Thanks for the great articles
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9#
wissal
MVE Created Oct 19, 2021 08:58:52

1. The LCAS protocol is specified in ITU-T G.7042. It allows on-demand increase or decrease of the bandwidth of the virtual concatenated grioup in a hitless manner This brings bandwidth-on-demand capability and survivability of data traffic.(Single choice)

A. True

2. When using RMON data to calculate bandwidth utilization, what do we do if there is no sampling period provided?(Single choice)

B. We can consider it as 1 second sampling period.

3. What are the causes of Ethernet service deterioration?

A. The service volume is large, the bandwidth is insufficient or sufficient, but the service burst volume is large.
B. The peer device does not respond when the traffic is heavy.
C. The port attributes do not match the attributes of the peer device. As a result, the port works abnormally.
D. The physical layer is faulty.

4. QinQ tunneling adds the same outer tag to all frames received on a QinQ port. The VLAN-based QinQ stacking technology can add outer tags to frames on QinQ ports based on different inner tags and support refined VLAN classification.(Single choice)

A. True

5. What is the signal rate of 10G LAN services?(Single choice)

C. 10.31 Gbit/s
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(0) (0)
10#
mohamm
Created Oct 19, 2021 09:05:05

1. The LCAS protocol is specified in ITU-T G.7042. It allows on-demand increase or decrease of the bandwidth of the virtual concatenated grioup in a hitless manner This brings bandwidth-on-demand capability and survivability of data traffic.(Single choice)

A. True

2. When using RMON data to calculate bandwidth utilization, what do we do if there is no sampling period provided?(Single choice)

B. We can consider it as 1 second sampling period.

3. What are the causes of Ethernet service deterioration?

C. The port attributes do not match the attributes of the peer device. As a result, the port works abnormally.
D. The physical layer is faulty.

4. QinQ tunneling adds the same outer tag to all frames received on a QinQ port. The VLAN-based QinQ stacking technology can add outer tags to frames on QinQ ports based on different inner tags and support refined VLAN classification.(Single choice)

A. True

5. What is the signal rate of 10G LAN services?(Single choice)

C. 10.31 Gbit/s
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