This article describes the issue of the multicast route frequently disappearing and re-appearing in the multicast network, due to the MTU mismatch on directly connected links.
The multicast route frequently disappears and re-appears in the multicast network, due to the MTU mismatch on directly connected links.
Different MTU values on directly connected links may cause this random behavior of the multicast traffic in the network.
In the following topology, multicast is running in a stable scenario. Modifications were made to the MTU value the directly connected link's interface, which is between Mayank-M7i and Atlantic-M320 routers. The different MTU value caused various multicast traffic groups to frequently disappear and re-appear.
The PIM protocol does not verify or negotiate the MTU value with its directly connected neighbor; so Atlantis was creating larger PIM packets, based on its larger MTU value on its interface and were not accepted by the Mayank-M7i router. Again, PIM was creating some smaller and larger packets. So, based on whatever the Mayank-M7i router was able to absorb with its MTU value, it was able to process that and it was not able to process the packets, which were larger than the MTU value of Mayank-M7i. So, certain groups were working and some were not. Again, this is dynamic behavior; so, it was unpredictable.
Topology :
Source + | | | +---+---+ +-------+ | | | | |Mayank | |Devang | | M7i | |M7i RP | +---+---+ +---+---+ | 002 | | MTU 1518 | | | | +------------------+ | | | | | +----+ Atlantis +---+ 215 | M320 | MTU:9192 +--------+---------+ | | | +---+---+ | | |Thunder+-------+Receiver | MX | +-------+
lab@mayank-m7i> show interfaces terse ge-0/0/3 Interface Admin Link Proto Local Remote ge-0/0/3 up up ge-0/0/3.0 up up inet 172.100.50.1/30 lab@mayank-m7i> show interfaces terse ge-0/0/2 Interface Admin Link Proto Local Remote ge-0/0/2 up up ge-0/0/2.4 up up inet 172.130.40.1/30 ge-0/0/2.32767 up up lab@mayank-m7i> lab@mayank-m7i> show interfaces ge-0/0/2 | match mtu Link-level type: Ethernet, MTU: 1518, Speed: 1000mbps, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Protocol inet, MTU: 1500 lab@mayank-m7i> lab@atlantis-M320-re0> show interfaces terse ge-2/1/5 Interface Admin Link Proto Local Remote ge-2/1/5 up up ge-2/1/5.4 up up inet 172.130.40.2/30 multiservice ge-2/1/5.32767 up up multiservice lab@atlantis-M320-re0> lab@atlantis-M320-re0> show interfaces ge-2/1/5 | match mtu Link-level type: Ethernet, MTU: 9192, Speed: 1000mbps, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Protocol inet, MTU: 9174 Protocol multiservice, MTU: Unlimited Protocol multiservice, MTU: Unlimited lab@atlantis-M320-re0> monitor traffic interface ge-2/1/5 size 2000 < running TCP dump on interface connected to Mayank-M7i router. verbose output suppressed, use or for full protocol decode Address resolution is ON. Use to avoid any reverse lookup delay. Address resolution timeout is 4s. Listening on ge-2/1/5, capture size 2000 bytes Reverse lookup for 172.130.40.1 failed (check DNS reachability). Other reverse lookup failures will not be reported. Use to avoid reverse lookups on IP addresses. 20:50:18.959687 Out IP truncated-ip - 3180 bytes missing! 172.130.40.2 > 224.0.0.13: 172.130.40.2 > 224.0.0.13:PIMv2, Join / Prune, length 5114 < PIM join/prune packet length is larger then the MTU size of Mayank-M7i router's interface. 20:50:18.991051 Out IP truncated-ip - 1800 bytes missing! 172.130.40.2 > 224.0.0.13: 172.130.40.2 > 224.0.0.13:PIMv2, Join / Prune, length 3734 20:51:18.962301 Out IP truncated-ip - 3180 bytes missing! 172.130.40.2 > 224.0.0.13: 172.130.40.2 > 224.0.0.13:PIMv2, Join / Prune, length 5114 20:51:18.993112 Out IP truncated-ip - 1800 bytes missing! 172.130.40.2 > 224.0.0.13: 172.130.40.2 > 224.0.0.13:PIMv2, Join / Prune, length 3734 20:51:21.064815 Out IP 172.130.40.2 > 224.0.0.22: igmp v2 report 224.0.0.22 20:51:23.189523 Out IP 172.130.40.2 > 224.0.0.13: 172.130.40.2 > 224.0.0.13:PIMv2, Hello, length 34 MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics < In this command you will observe the zero value of PPS for few multicast groups. Statistics: 2 kBps, 40 pps, 27853 packets Statistics: 2 kBps, 40 pps, 27845 packets Statistics: 2 kBps, 40 pps, 27837 packets Statistics: 2 kBps, 40 pps, 27830 packets Statistics: 2 kBps, 40 pps, 27824 packets Statistics: 2 kBps, 40 pps, 27819 packets Statistics: 2 kBps, 40 pps, 27814 packets Statistics: 2 kBps, 40 pps, 27851 packets Statistics: 2 kBps, 40 pps, 27807 packets Statistics: 2 kBps, 40 pps, 27797 packets Statistics: 2 kBps, 40 pps, 27793 packets Statistics: 2 kBps, 40 pps, 27780 packets Statistics: 2 kBps, 40 pps, 27777 packets Statistics: 2 kBps, 40 pps, 27777 packets Statistics: 2 kBps, 40 pps, 27835 packets Statistics: 2 kBps, 40 pps, 27765 packets Statistics: 2 kBps, 40 pps, 27760 packets Statistics: 2 kBps, 40 pps, 27756 packets Statistics: 2 kBps, 40 pps, 27751 packets Statistics: 2 kBps, 40 pps, 27745 packets Statistics: 2 kBps, 40 pps, 27741 packets Statistics: 2 kBps, 40 pps, 27738 packets Statistics: 2 kBps, 40 pps, 27734 packets Statistics: 2 kBps, 40 pps, 27720 packets Statistics: 2 kBps, 40 pps, 27714 packets Statistics: 2 kBps, 40 pps, 28941 packets Statistics: 2 kBps, 40 pps, 28935 packets Statistics: 2 kBps, 40 pps, 28941 packets Statistics: 2 kBps, 40 pps, 37977 packets Statistics: 2 kBps, 40 pps, 28918 packets Statistics: 2 kBps, 40 pps, 28912 packets Statistics: 2 kBps, 40 pps, 37994 packets Statistics: 2 kBps, 40 pps, 28907 packets Statistics: 2 kBps, 40 pps, 28907 packets Statistics: 2 kBps, 40 pps, 28871 packets Statistics: 2 kBps, 40 pps, 28799 packets Statistics: 2 kBps, 40 pps, 28795 packets Statistics: 2 kBps, 40 pps, 28782 packets Statistics: 2 kBps, 40 pps, 37971 packets Statistics: 2 kBps, 40 pps, 38010 packets Statistics: 2 kBps, 40 pps, 28783 packets Statistics: 2 kBps, 40 pps, 28772 packets Statistics: 2 kBps, 40 pps, 28758 packets Statistics: 2 kBps, 40 pps, 28752 packets Statistics: 2 kBps, 40 pps, 28748 packets Statistics: 2 kBps, 40 pps, 28743 packets Statistics: 2 kBps, 40 pps, 28732 packets Statistics: 2 kBps, 40 pps, 28727 packets Statistics: 2 kBps, 40 pps, 27904 packets Statistics: 2 kBps, 40 pps, 28721 packets Statistics: 2 kBps, 40 pps, 27682 packets Statistics: 2 kBps, 40 pps, 28715 packets Statistics: 2 kBps, 40 pps, 28713 packets Statistics: 2 kBps, 40 pps, 27674 packets Statistics: 2 kBps, 40 pps, 37918 packets Statistics: 2 kBps, 40 pps, 27666 packets Statistics: 2 kBps, 40 pps, 27660 packets Statistics: 2 kBps, 40 pps, 27839 packets Statistics: 2 kBps, 40 pps, 27644 packets Statistics: 2 kBps, 40 pps, 28949 packets Statistics: 2 kBps, 40 pps, 27638 packets Statistics: 2 kBps, 40 pps, 28946 packets Statistics: 2 kBps, 40 pps, 28937 packets Statistics: 2 kBps, 40 pps, 27629 packets Statistics: 2 kBps, 40 pps, 28929 packets Statistics: 2 kBps, 40 pps, 27621 packets Statistics: 2 kBps, 40 pps, 27614 packets Statistics: 2 kBps, 40 pps, 28923 packets Statistics: 2 kBps, 40 pps, 27603 packets Statistics: 2 kBps, 40 pps, 27805 packets Statistics: 2 kBps, 40 pps, 27596 packets Statistics: 2 kBps, 40 pps, 28906 packets Statistics: 2 kBps, 40 pps, 28901 packets Statistics: 2 kBps, 40 pps, 28898 packets Statistics: 2 kBps, 40 pps, 28891 packets Statistics: 2 kBps, 40 pps, 28655 packets Statistics: 2 kBps, 40 pps, 28647 packets Statistics: 2 kBps, 40 pps, 28622 packets Statistics: 2 kBps, 40 pps, 28617 packets Statistics: 2 kBps, 40 pps, 28616 packets Statistics: 2 kBps, 40 pps, 28614 packets Statistics: 2 kBps, 40 pps, 28608 packets Statistics: 2 kBps, 40 pps, 27848 packets Statistics: 2 kBps, 40 pps, 28601 packets Statistics: 2 kBps, 40 pps, 28597 packets Statistics: 2 kBps, 40 pps, 27562 packets Statistics: 2 kBps, 40 pps, 28592 packets Statistics: 2 kBps, 40 pps, 28585 packets Statistics: 2 kBps, 40 pps, 27834 packets Statistics: 2 kBps, 40 pps, 28576 packets Statistics: 2 kBps, 40 pps, 28570 packets Statistics: 2 kBps, 40 pps, 28565 packets Statistics: 2 kBps, 40 pps, 28558 packets Statistics: 2 kBps, 40 pps, 28555 packets Statistics: 2 kBps, 40 pps, 27538 packets Statistics: 2 kBps, 40 pps, 27523 packets Statistics: 2 kBps, 40 pps, 28543 packets Statistics: 2 kBps, 40 pps, 27505 packets Statistics: 2 kBps, 40 pps, 27501 packets Statistics: 2 kBps, 40 pps, 28540 packets Statistics: 2 kBps, 40 pps, 37859 packets Statistics: 2 kBps, 40 pps, 28518 packets Statistics: 2 kBps, 40 pps, 27489 packets Statistics: 2 kBps, 40 pps, 27467 packets Statistics: 2 kBps, 40 pps, 28466 packets Statistics: 2 kBps, 40 pps, 27461 packets Statistics: 2 kBps, 40 pps, 27455 packets Statistics: 2 kBps, 40 pps, 28460 packets Statistics: 2 kBps, 40 pps, 28454 packets Statistics: 2 kBps, 40 pps, 27439 packets Statistics: 2 kBps, 40 pps, 28445 packets Statistics: 2 kBps, 40 pps, 27427 packets Statistics: 2 kBps, 40 pps, 28435 packets Statistics: 2 kBps, 40 pps, 28370 packets Statistics: 2 kBps, 40 pps, 27421 packets Statistics: 2 kBps, 40 pps, 28421 packets Statistics: 2 kBps, 40 pps, 28399 packets Statistics: 2 kBps, 40 pps, 27552 packets Statistics: 2 kBps, 40 pps, 28402 packets Statistics: 2 kBps, 40 pps, 28394 packets Statistics: 2 kBps, 40 pps, 27427 packets Statistics: 2 kBps, 40 pps, 27416 packets Statistics: 2 kBps, 40 pps, 27405 packets Statistics: 2 kBps, 40 pps, 28356 packets Statistics: 2 kBps, 40 pps, 28348 packets Statistics: 2 kBps, 40 pps, 27397 packets Statistics: 2 kBps, 40 pps, 28343 packets Statistics: 2 kBps, 40 pps, 28338 packets Statistics: 2 kBps, 40 pps, 27389 packets Statistics: 2 kBps, 40 pps, 27386 packets Statistics: 2 kBps, 40 pps, 37778 packets Statistics: 2 kBps, 40 pps, 28327 packets Statistics: 2 kBps, 40 pps, 27379 packets Statistics: 2 kBps, 40 pps, 28315 packets Statistics: 2 kBps, 40 pps, 27375 packets Statistics: 2 kBps, 40 pps, 28246 packets Statistics: 2 kBps, 40 pps, 28239 packets Statistics: 2 kBps, 40 pps, 28231 packets Statistics: 2 kBps, 40 pps, 27361 packets Statistics: 2 kBps, 40 pps, 27347 packets Statistics: 2 kBps, 40 pps, 28230 packets Statistics: 2 kBps, 40 pps, 28224 packets Statistics: 2 kBps, 40 pps, 28218 packets Statistics: 2 kBps, 40 pps, 27350 packets Statistics: 2 kBps, 40 pps, 27346 packets Statistics: 2 kBps, 40 pps, 37949 packets Statistics: 2 kBps, 40 pps, 28217 packets Statistics: 2 kBps, 40 pps, 28182 packets Statistics: 2 kBps, 40 pps, 37940 packets Statistics: 2 kBps, 40 pps, 37936 packets Statistics: 2 kBps, 40 pps, 37929 packets Statistics: 2 kBps, 40 pps, 28185 packets Statistics: 2 kBps, 40 pps, 28179 packets Statistics: 2 kBps, 40 pps, 37913 packets Statistics: 2 kBps, 40 pps, 27498 packets Statistics: 2 kBps, 40 pps, 37898 packets Statistics: 2 kBps, 40 pps, 37884 packets Statistics: 2 kBps, 40 pps, 28163 packets Statistics: 2 kBps, 40 pps, 28157 packets Statistics: 2 kBps, 40 pps, 37890 packets Statistics: 2 kBps, 40 pps, 37713 packets Statistics: 2 kBps, 40 pps, 27511 packets Statistics: 2 kBps, 40 pps, 37850 packets Statistics: 2 kBps, 40 pps, 27489 packets Statistics: 2 kBps, 40 pps, 37700 packets Statistics: 2 kBps, 40 pps, 27419 packets Statistics: 2 kBps, 40 pps, 27472 packets Statistics: 2 kBps, 40 pps, 27546 packets Statistics: 2 kBps, 40 pps, 27451 packets Statistics: 2 kBps, 40 pps, 27750 packets Statistics: 2 kBps, 40 pps, 37827 packets Statistics: 2 kBps, 40 pps, 27794 packets Statistics: 2 kBps, 40 pps, 28028 packets Statistics: 2 kBps, 40 pps, 27467 packets Statistics: 2 kBps, 40 pps, 37818 packets Statistics: 2 kBps, 40 pps, 37801 packets Statistics: 2 kBps, 40 pps, 28110 packets Statistics: 2 kBps, 40 pps, 37791 packets Statistics: 2 kBps, 40 pps, 27523 packets Statistics: 2 kBps, 40 pps, 27793 packets Statistics: 2 kBps, 40 pps, 28093 packets Statistics: 2 kBps, 40 pps, 27442 packets Statistics: 2 kBps, 40 pps, 28091 packets Statistics: 2 kBps, 40 pps, 37767 packets Statistics: 2 kBps, 40 pps, 28083 packets Statistics: 2 kBps, 40 pps, 27411 packets Statistics: 2 kBps, 40 pps, 37824 packets Statistics: 2 kBps, 40 pps, 28053 packets Statistics: 2 kBps, 40 pps, 37720 packets Statistics: 2 kBps, 40 pps, 28034 packets Statistics: 2 kBps, 40 pps, 28044 packets Statistics: 2 kBps, 40 pps, 28031 packets Statistics: 2 kBps, 40 pps, 28029 packets Statistics: 2 kBps, 40 pps, 28028 packets Statistics: 2 kBps, 40 pps, 27547 packets Statistics: 2 kBps, 40 pps, 37980 packets Statistics: 2 kBps, 40 pps, 27953 packets Statistics: 2 kBps, 40 pps, 27384 packets Statistics: 2 kBps, 40 pps, 37933 packets Statistics: 2 kBps, 40 pps, 27368 packets Statistics: 2 kBps, 40 pps, 37937 packets Statistics: 2 kBps, 40 pps, 27946 packets Statistics: 2 kBps, 40 pps, 37839 packets Statistics: 2 kBps, 40 pps, 27945 packets Statistics: 2 kBps, 40 pps, 37859 packets Statistics: 2 kBps, 40 pps, 37787 packets Statistics: 2 kBps, 40 pps, 28515 packets Statistics: 2 kBps, 40 pps, 27549 packets Statistics: 2 kBps, 40 pps, 28513 packets Statistics: 2 kBps, 40 pps, 37823 packets Statistics: 2 kBps, 40 pps, 37820 packets Statistics: 2 kBps, 40 pps, 37766 packets Statistics: 2 kBps, 40 pps, 28451 packets Statistics: 2 kBps, 40 pps, 28438 packets Statistics: 2 kBps, 40 pps, 28369 packets Statistics: 2 kBps, 40 pps, 37759 packets Statistics: 2 kBps, 40 pps, 27768 packets Statistics: 2 kBps, 40 pps, 37805 packets Statistics: 2 kBps, 40 pps, 28237 packets Statistics: 2 kBps, 40 pps, 28229 packets Statistics: 2 kBps, 40 pps, 28228 packets Statistics: 2 kBps, 40 pps, 37751 packets Statistics: 2 kBps, 40 pps, 28230 packets Statistics: 2 kBps, 40 pps, 28224 packets Statistics: 2 kBps, 40 pps, 37759 packets Statistics: 2 kBps, 40 pps, 28232 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 37763 packets Statistics: 2 kBps, 40 pps, 28214 packets Statistics: 2 kBps, 41 pps, 28210 packets Statistics: 2 kBps, 41 pps, 28357 packets Statistics: 2 kBps, 41 pps, 27559 packets Statistics: 2 kBps, 40 pps, 28729 packets Statistics: 2 kBps, 40 pps, 28169 packets Statistics: 2 kBps, 40 pps, 37660 packets Statistics: 2 kBps, 40 pps, 37581 packets Statistics: 2 kBps, 40 pps, 27466 packets Statistics: 2 kBps, 40 pps, 33329 packets Statistics: 2 kBps, 40 pps, 28209 packets Statistics: 2 kBps, 40 pps, 15585 packets Statistics: 2 kBps, 40 pps, 37868 packets Statistics: 2 kBps, 40 pps, 28477 packets Statistics: 2 kBps, 40 pps, 37817 packets Statistics: 2 kBps, 40 pps, 28169 packets Statistics: 2 kBps, 40 pps, 37664 packets Statistics: 2 kBps, 40 pps, 28580 packets Statistics: 2 kBps, 40 pps, 27864 packets Statistics: 2 kBps, 40 pps, 28187 packets Statistics: 2 kBps, 40 pps, 28085 packets Statistics: 2 kBps, 40 pps, 27861 packets Statistics: 2 kBps, 40 pps, 28145 packets Statistics: 2 kBps, 40 pps, 28139 packets Statistics: 2 kBps, 40 pps, 25521 packets Statistics: 2 kBps, 40 pps, 28172 packets Statistics: 0 kBps, 0 pps, 8401 packets Statistics: 2 kBps, 40 pps, 389 packets Statistics: 2 kBps, 40 pps, 28083 packets Statistics: 2 kBps, 40 pps, 37965 packets Statistics: 0 kBps, 0 pps, 8401 packets Statistics: 2 kBps, 40 pps, 1444 packets Statistics: 2 kBps, 40 pps, 650 packets Statistics: 2 kBps, 40 pps, 17103 packets Statistics: 2 kBps, 40 pps, 28006 packets Statistics: 2 kBps, 40 pps, 31978 packets Statistics: 2 kBps, 40 pps, 37903 packets Statistics: 2 kBps, 40 pps, 992 packets Statistics: 2 kBps, 40 pps, 28077 packets Statistics: 2 kBps, 40 pps, 52383 packets Statistics: 2 kBps, 40 pps, 3473 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 22288 packets Statistics: 2 kBps, 40 pps, 28219 packets Statistics: 2 kBps, 40 pps, 28081 packets Statistics: 2 kBps, 40 pps, 6119 packets Statistics: 2 kBps, 40 pps, 37651 packets Statistics: 2 kBps, 40 pps, 8016 packets Statistics: 2 kBps, 40 pps, 37817 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 37736 packets Statistics: 0 kBps, 0 pps, 8400 packets Statistics: 2 kBps, 40 pps, 642 packets Statistics: 2 kBps, 40 pps, 8070 packets Statistics: 2 kBps, 40 pps, 1511 packets Statistics: 2 kBps, 40 pps, 6119 packets Statistics: 2 kBps, 40 pps, 2503 packets Statistics: 2 kBps, 40 pps, 52277 packets Statistics: 2 kBps, 40 pps, 27973 packets Statistics: 0 kBps, 0 pps, 8402 packets Statistics: 0 kBps, 0 pps, 8400 packets Statistics: 2 kBps, 40 pps, 37676 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 32987 packets Statistics: 2 kBps, 40 pps, 2662 packets Statistics: 2 kBps, 40 pps, 52213 packets Statistics: 2 kBps, 40 pps, 15720 packets Statistics: 2 kBps, 40 pps, 992 packets Statistics: 2 kBps, 40 pps, 27972 packets Statistics: 2 kBps, 40 pps, 28424 packets Statistics: 2 kBps, 40 pps, 993 packets Statistics: 0 kBps, 0 pps, 8399 packets < highlighted few groups reporting zero value. You can find number of different groups reporting 0 value in stats. Statistics: 0 kBps, 0 pps, 8401 packets Statistics: 2 kBps, 40 pps, 994 packets Statistics: 0 kBps, 0 pps, 8401 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 11674 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 27949 packets Statistics: 0 kBps, 0 pps, 8397 packets Statistics: 0 kBps, 0 pps, 8401 packets Statistics: 2 kBps, 40 pps, 33358 packets Statistics: 2 kBps, 40 pps, 4699 packets Statistics: 2 kBps, 40 pps, 15685 packets Statistics: 2 kBps, 40 pps, 25870 packets Statistics: 2 kBps, 40 pps, 1742 packets Statistics: 0 kBps, 0 pps, 8397 packets Statistics: 2 kBps, 40 pps, 52385 packets Statistics: 2 kBps, 40 pps, 6121 packets Statistics: 0 kBps, 0 pps, 8402 packets Statistics: 2 kBps, 40 pps, 4685 packets Statistics: 0 kBps, 0 pps, 8402 packets Statistics: 2 kBps, 40 pps, 25548 packets Statistics: 0 kBps, 0 pps, 8401 packets Statistics: 2 kBps, 40 pps, 28800 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 0 kBps, 0 pps, 8402 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 986 packets Statistics: 2 kBps, 40 pps, 6121 packets Statistics: 2 kBps, 40 pps, 988 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 2 kBps, 40 pps, 1729 packets Statistics: 0 kBps, 0 pps, 8402 packets Statistics: 2 kBps, 40 pps, 988 packets Statistics: 0 kBps, 0 pps, 8400 packets Statistics: 2 kBps, 40 pps, 988 packets Statistics: 0 kBps, 0 pps, 8400 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 0 kBps, 0 pps, 8400 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 1708 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 2 kBps, 40 pps, 988 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 988 packets Statistics: 2 kBps, 40 pps, 988 packets Statistics: 2 kBps, 40 pps, 5946 packets Statistics: 2 kBps, 40 pps, 988 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 988 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 6121 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 5925 packets Statistics: 2 kBps, 40 pps, 986 packets Statistics: 0 kBps, 0 pps, 8403 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 2 kBps, 40 pps, 989 packets Statistics: 2 kBps, 40 pps, 989 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 4664 packets Statistics: 2 kBps, 40 pps, 1674 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 989 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 2 kBps, 40 pps, 1642 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 1632 packets Statistics: 2 kBps, 40 pps, 51974 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 2 kBps, 40 pps, 989 packets Statistics: 2 kBps, 40 pps, 989 packets Statistics: 2 kBps, 40 pps, 989 packets Statistics: 2 kBps, 40 pps, 989 packets Statistics: 2 kBps, 40 pps, 989 packets Statistics: 2 kBps, 40 pps, 1617 packets Statistics: 2 kBps, 40 pps, 4645 packets Statistics: 2 kBps, 40 pps, 6122 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 990 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 2 kBps, 40 pps, 990 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 0 kBps, 0 pps, 8399 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 0 kBps, 0 pps, 8392 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 990 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 2 kBps, 40 pps, 2577 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 2 kBps, 40 pps, 990 packets Statistics: 0 kBps, 0 pps, 8400 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 0 kBps, 0 pps, 8398 packets Statistics: 2 kBps, 40 pps, 987 packets Statistics: 2 kBps, 40 pps, 6123 packets Statistics: 2 kBps, 40 pps, 988 packets MASTER Variation in number of multicast group counter in our lab: MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 405 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 405 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 424 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 424 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 424 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 318 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 318 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 419 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 417 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 417 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 417 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 417 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 417 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 426 lines MASTER lab@Thunder> show multicast route logical-system lr2 extensive | match statistics | count Count: 432 lines