Show ip mroute 239.1.1.5 command
Hello All,
I have a multicast configuration that is now working. I am trying to gain further understanding on this subject.
When I do a "show ip mroute 239.1.1.5" there is a line in the report that I have not yet been able to find information on what it means as follows:
"Incoming interface: VLAN5, RPF nbr 10.1.3.1*". The nbr part is what I do not know.
I have included the report in an attachment.
Thanks.
Regards,
Jeff
Jeff
The RPF neighbor is the L3 router/switch that is one hop closer to the source of the multicast stream.
If the RPF neighbor in the (, G) entry was 0.0.0.0 then that would mean the source was directly connected in vlan 5.
In your example the RPF neighbor is 10.1.3.1 which means there is a L3 device with an interface using that IP that is nearer the source of the mutlicast stream.
The RPF (Reverse Path Forwarding) check is done for all multicast packets on a L3 device ie. if the interface the mutlicast packet was received on is the same interface that the IP routing table says is used to route to the source IP then the RPF check is passed and the mutlicast packets can be forwarded to any other interfaces that have devices who want the stream.
If the packet arrives on an interface and according to the IP routing table the route to the source IP is not via that interface then the packet is dropped and not forwarded.
This is how PIM avoids routing loops for multicast traffic.
Edit - the above concerning the ip mroute entries is relevant to PIM dense mode as this is what you are running.
Jon
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descriptor
here is my listener file
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Alias lsn
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Show ip mroute count interpertation
I've inherited a configuration, and I'm trying to understand it.
Almost all of our L3 switches have a command:
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But I'm not sure how the switch (3750) is interpreting this.
Running a:
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Multicast route-limit: 500
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It's worth doing the above just in case i am interpreting it incorrectly.
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Hello
i'm testing for catalyst 3850 wireless multicast, and i've tried several configurations but it's always fault. I took a pc with the wired as the multicast video source, and another pc as the receiver with wireless, the two pc in the same vlan, for example, vlan 10. the followed is the detail configuration about 3850.
<omitted>
ip routing
ip multicast-routing
ip multicast auto-enable
ip igmp snooping querier
interface Vlan6 ------The Access Point Vlan and it's the same vlan as wireless management vlan
description TO-Wireless_AP
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ip pim sparse-dense-mode
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description TO-EXSi
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ip pim sparse-dense-mode
wireless mobility controller
wireless management interface Vlan6
wireless multicast
wlan VideoStream 3 VideoStream
client vlan 10
no security wpa
no security wpa akm dot1x
no security wpa wpa2
no security wpa wpa2 ciphers aes
no shutdown
ap capwap multicast 239.100.1.1
<omitted>
The video multicast group address is 239.100.1.1, here are some show command results.
show ip mroute
(*, 239.100.1.1), 00:01:13/stopped, RP 10.1.1.1, flags: SPF
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list: Null
(192.168.10.6, 239.100.1.1), 00:01:13/00:01:46, flags: PFT
Incoming interface: Vlan10, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.255.255.250), 01:21:59/00:02:05, RP 10.1.1.1, flags: SJC
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list:
Vlan5, Forward/Sparse-Dense, 01:21:59/00:02:05
(*, 224.0.1.40), 01:21:59/00:02:02, RP 10.1.1.1, flags: SJCL
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list:
Vlan5, Forward/Sparse-Dense, 01:21:59/00:02:02
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Wireless multicast is Enabled in the system
Vlan bcast nonip-mcast mcast mDNS-br mgid Stdby Flags
1 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
5 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
6 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
7 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
8 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
9 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
10 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
1002 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1003 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1004 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1005 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
Index MGID (S, G, V)
The C3850 software version is Version 03.03.03SE RELEASE SOFTWARE (fc2), and i've tried the Version 03.02.02SE, it's the same result. if the multicast not worked, i can't do the Videostream function demo next step.if video multicast group is 239.100.1.1, then same group cannot be configured for AP mcast -mcast mode communication.
Try this:
config t
no ap capwap multicast 239.100.1.1
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regards,
sudha -
About C3850 Wireless Multicast issue
Hello
i'm testing for catalyst 3850 wireless multicast, and i've tried several configurations but it's always fault. I took a pc with the wired as the multicast video source, and another pc as the receiver with wireless, the two pc in the same vlan, for example, vlan 10. the followed is the detail configuration about 3850.
<omitted>
ip routing
ip multicast-routing
ip multicast auto-enable
ip igmp snooping querier
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description TO-Wireless_AP
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ip pim sparse-dense-mode
interface Vlan10 ----The video source vlan and the wireless receiver client vlan.
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ip address 192.168.10.254 255.255.255.0
ip pim sparse-dense-mode
wireless mobility controller
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no security wpa
no security wpa akm dot1x
no security wpa wpa2
no security wpa wpa2 ciphers aes
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ap capwap multicast 239.100.1.1
<omitted>
The video multicast group address is 239.100.1.1, here are some show command results.
show ip mroute
(*, 239.100.1.1), 00:01:13/stopped, RP 10.1.1.1, flags: SPF
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list: Null
(192.168.10.6, 239.100.1.1), 00:01:13/00:01:46, flags: PFT
Incoming interface: Vlan10, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.255.255.250), 01:21:59/00:02:05, RP 10.1.1.1, flags: SJC
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list:
Vlan5, Forward/Sparse-Dense, 01:21:59/00:02:05
(*, 224.0.1.40), 01:21:59/00:02:02, RP 10.1.1.1, flags: SJCL
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list:
Vlan5, Forward/Sparse-Dense, 01:21:59/00:02:02
show ip igmp snooping wireless mgid
Total number of L2-MGIDs = 3
Total number of MCAST MGIDs = 0
Wireless multicast is Enabled in the system
Vlan bcast nonip-mcast mcast mDNS-br mgid Stdby Flags
1 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
5 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
6 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
7 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
8 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
9 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
10 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
1002 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1003 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1004 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1005 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
Index MGID (S, G, V)
The C3850 software version is Version 03.03.03SE RELEASE SOFTWARE (fc2), and i've tried the Version 03.02.02SE, it's the same result. if the multicast not worked, i can't do the Videostream function demo next step.Hello
i'm testing for catalyst 3850 wireless multicast, and i've tried several configurations but it's always fault. I took a pc with the wired as the multicast video source, and another pc as the receiver with wireless, the two pc in the same vlan, for example, vlan 10. the followed is the detail configuration about 3850.
<omitted>
ip routing
ip multicast-routing
ip multicast auto-enable
ip igmp snooping querier
interface Vlan6 ------The Access Point Vlan and it's the same vlan as wireless management vlan
description TO-Wireless_AP
ip address 192.168.6.254 255.255.255.0
ip pim sparse-dense-mode
interface Vlan10 ----The video source vlan and the wireless receiver client vlan.
description TO-EXSi
ip address 192.168.10.254 255.255.255.0
ip pim sparse-dense-mode
wireless mobility controller
wireless management interface Vlan6
wireless multicast
wlan VideoStream 3 VideoStream
client vlan 10
no security wpa
no security wpa akm dot1x
no security wpa wpa2
no security wpa wpa2 ciphers aes
no shutdown
ap capwap multicast 239.100.1.1
<omitted>
The video multicast group address is 239.100.1.1, here are some show command results.
show ip mroute
(*, 239.100.1.1), 00:01:13/stopped, RP 10.1.1.1, flags: SPF
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list: Null
(192.168.10.6, 239.100.1.1), 00:01:13/00:01:46, flags: PFT
Incoming interface: Vlan10, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.255.255.250), 01:21:59/00:02:05, RP 10.1.1.1, flags: SJC
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list:
Vlan5, Forward/Sparse-Dense, 01:21:59/00:02:05
(*, 224.0.1.40), 01:21:59/00:02:02, RP 10.1.1.1, flags: SJCL
Incoming interface: GigabitEthernet1/0/1, RPF nbr 10.0.0.2
Outgoing interface list:
Vlan5, Forward/Sparse-Dense, 01:21:59/00:02:02
show ip igmp snooping wireless mgid
Total number of L2-MGIDs = 3
Total number of MCAST MGIDs = 0
Wireless multicast is Enabled in the system
Vlan bcast nonip-mcast mcast mDNS-br mgid Stdby Flags
1 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
5 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
6 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
7 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
8 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
9 Disabled Disabled Enabled Enabled Disabled 0:0:1:0
10 Disabled Disabled Enabled Enabled Enabled 0:0:1:0
1002 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1003 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1004 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
1005 Enabled Enabled Enabled Enabled Disabled 0:0:1:0
Index MGID (S, G, V)
The C3850 software version is Version 03.03.03SE RELEASE SOFTWARE (fc2), and i've tried the Version 03.02.02SE, it's the same result. if the multicast not worked, i can't do the Videostream function demo next step. -
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af:statusIndicator does not show busy icon or motion when a command button is click
I am working on an excel data upload functionality on .jspx page. I use “af:inputFile” file uploader to upload an excel file then process the data and store it as a list of objects in memory and display it in “af:table” table
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