Re: WLC - AP Groups - Multicast - Bonjour - Apple TVv3

Andrew MacTaggart · ‎10-10-2012

Good Morning

first off - Should start off by saying I have followed the Apple Bonjour deployment guide [except for interface group] portion

I have searched high and low, here and there to no avail.

http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_tech_note09186a0080bb1d7c.shtml

I am aware that the bonjour gateway IOS may or may not come out in Oct/Nov 2012, which maybe my only option at this point.

Is this not working because of my AP groups setup or have I misssed something

I can only get bonjour to work if multicast - unicast mode is selected, but our network slowly grinds to a halt, so it is not an option

when I first connect to the wireless I see 1 bonjour device for about 3 minutes and then disappears.

I can not see the appletv at all with an ipad, airplay does not appear at all.

We have the following setup.

2 campuses - Campus 2 is simular setup, but WLCs higher model and ios 7.2 and clients and subnets are double

Campus 1

2 WLC 4404 ios 7.0.230.0

30 AP groups mapped to 30 Interfaces using subnets with /23 bit subnetmasks

multicast - multicast is set with multicast addresses of

controller 1 239.239.5.1 and

controller 2 239.239.5.2

multicast is enabled

IGMPsnooping as well

On Switch multicast routing is enabled

all AP group subnets and Mgmt vlans are PIM enabled dense mode

set up a trunk to ubuntu server to act as a bonjour gateway, installed avahi and vlan

mapped all AP and mgmt vlans to Ubuntu server.

avahi see the following + more

+ eth0.136 IPv6 Apple TV _airplay._tcp local

+ eth0.136 IPv4 Apple TV _airplay._tcp local

+ eth0.134 IPv6 Apple TV _airplay._tcp local

+ eth0.134 IPv4 Apple TV _airplay._tcp local

+ eth0.132 IPv6 Apple TV _airplay._tcp local

+ eth0.132 IPv4 Apple TV _airplay._tcp local

+ eth0.130 IPv6 Apple TV _airplay._tcp local

more goes on forever

+ eth0.136 IPv4 xyz Library Apple Home Sharing local

show ip multicast

Multicast Routing: enabled

Multicast Multipath: disabled

Multicast Route limit: No limit

Multicast Triggered RPF check: enabled

Multicast Fallback group mode: Dense

show ip multicast interface vlan 128

Vlan128 is up, line protocol is up

Internet address is x.x.128.1/23

Multicast routing: enabled

Multicast switching: fast

Multicast packets in/out: 14671352/276693

Multicast boundary: not set

Multicast TTL threshold: 0

Multicast Tagswitching: disabled

Where do I go from here?

Stephen Rodriguez · ‎10-10-2012

The other thing to keep in mind with multiyicast is that the AP keep in mind, is the AP VLAN needs to be pin enabled as well.

If the mgmt, all AP and client VLAN are pim enabled it should work

Steve

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HTH,
Steve

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Andrew MacTaggart · ‎10-10-2012

Hi Stephen

Yes AP vlan is enabled for PIM.

But You got me thinking and I just added the VLAN to the bonjour Gateway device. will find out in 2 minutes if that has helped.

A

Andrew MacTaggart · ‎10-10-2012

Sadly I have to report that adding the vlan to the gateway server has provided no joy

Andrew MacTaggart · ‎10-10-2012

I just enabled broadcast forwarding and magic happened.

What will be the impact on the WLAN network from this action?

A

Andrew MacTaggart · ‎10-10-2012

Ok I have bonjour clients in the network pane of my IMAC. but the IPAD does not see AppleTVv3. It saw it for 3 seconds when I enabled broadcast forwarding and then vanished into thin air.

A

Andrew MacTaggart · ‎10-10-2012

worked for about 30 minutes on my IMAC - now all bonjour clients have disappeared. Back to square 1.

Andrew MacTaggart · ‎10-10-2012

so I found this

Oct 11 13:16:36 bonjourgw avahi-daemon[1255]: Record too large, cannot send

Oct 11 13:16:38 avahi-daemon[1255]: last message repeated 29 times

Oct 11 13:16:39 bonjourgw avahi-daemon[1255]: Record too large, cannot send

Andrew MacTaggart · ‎10-10-2012

Ok I have removed all the vlans from the avahi except mgmt, ap, and test subnet. I created a new ssid assigned test subnet and added to ap group. joined the apple tv and and ipad to same ssid. and still I can not see the appletv. Airplay is turned on and I know IPAD works because if I connect to Independent Basic Service Set (IBSS) aka Ad-hoc running Airplay server I see the IPAD airplay icon.

A

Stephen Rodriguez · ‎10-11-2012

http://nostringsattachedshow.com/2012/07/02/cisco-wlc-multicast/

Take a look at this multicast guide for the WLC.

Steve

Sent from Cisco Technical Support iPhone App

HTH,
Steve

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Yahya Jaber · ‎10-11-2012

Hi,

this is another guide for Bonjour on the WLC.

http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_tech_note09186a0080bb1d7c.shtml

Andrew MacTaggart · ‎10-11-2012

Thanks Yahya and Stephen

I have tried to simplify my config as much as possible.

wlc 4404

Ethernet Multicast Forwarding............... Enable

Ethernet Broadcast Forwarding............... Enable

AP Multicast/Broadcast Mode................. Multicast Address : 239.239.5.1

IGMP snooping............................... Enabled

IGMP timeout................................ 60 seconds

IGMP Query Interval......................... 20 seconds

I have an interface created 10.x.x.x/23

I have created a new SSID APPLETV - assigned Interface

I have added the SSID to just 1 AP Group

show network multicast mgid summary

Layer2 MGID Mapping:

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

InterfaceName vlanId MGID

2upadhoc 136 27

Layer3 MGID Mapping:

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

Number of Layer3 MGIDs........................... 11

My vlan does not show up here.

I only have 2 devices in this vlan the AppleTV and IPAD

checking the switch for all required vlans

show ip multicast

Multicast Routing: enabled

Multicast Multipath: disabled

Multicast Route limit: No limit

Multicast Triggered RPF check: enabled

Multicast Fallback group mode: Dense

admin interface

Management, AP-Manger

Vlan12 is up, line protocol is up

Internet address is x.x.x.1/24

Multicast routing: enabled

Multicast switching: fast

Multicast packets in/out: 238489978/724352

Multicast boundary: not set

Multicast TTL threshold: 0

Multicast Tagswitching: disabled

AP vlan

Vlan222 is up, line protocol is up

Internet address is x.y.z.1/24

Multicast routing: enabled

Multicast switching: fast

Multicast packets in/out: 11423/238338583

Multicast boundary: not set

Multicast TTL threshold: 0

Multicast Tagswitching: disabled

The test Apple TV Vlan

Vlan136 is up, line protocol is up

Internet address is x.xx.1/23

Multicast routing: enabled

Multicast switching: fast

Multicast packets in/out: 156740/0

Multicast boundary: not set

Multicast TTL threshold: 0

Multicast Tagswitching: disabled

interface Vlan12

ip pim dense-mode

interface Vlan222

ip pim dense-mode

interface Vlan136

ip pim dense-mode

Show ip igmp groups

Group Address Interface Uptime Expires Last Reporter

224.0.1.39 Vlan136 2d00h 00:02:35 x.x.x.1

So just to recap

Same subnet in a AP Group

New SSID

multicast enabled on WLC - using multicast multicast mode

Broadcast forward enable

Switch -Multicast routing enabled

all vlans enabled for PIM

2 devices - added Imac to see if I could home share through Itunes.

end result

no bonjour clients, no apple tv, no airplay

Bonjour Gateway device - although same subnet it shouldn't be needed

eth0.12 Link encap:Ethernet HWaddr bc:30:5b:x:x:x

inet addr:x.x.x.244 Bcast:x.x.x.255 Mask:255.255.255.0

inet6 addr: fe80::be30:5bff:fed6:a178/64 Scope:Link

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:55005 errors:0 dropped:115 overruns:0 frame:0

TX packets:23003 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:2776156 (2.7 MB) TX bytes:11285256 (11.2 MB)

eth0.136 Link encap:Ethernet HWaddr bc:30:5b:x:x:x

inet addr:x.x.x.9 Bcast:x.x.x.255 Mask:255.255.254.0

inet6 addr: fe80::be30:5bff:fed6:a178/64 Scope:Link

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:42167 errors:0 dropped:115 overruns:0 frame:0

TX packets:22340 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:3251242 (3.2 MB) TX bytes:10373581 (10.3 MB)

eth0.222 Link encap:Ethernet HWaddr bc:30:5b:xx:xx:xx

inet addr:x.x.x.9 Bcast:x.x.x.255 Mask:255.255.255.0

inet6 addr: fe80::be30:5bff:fed6:a178/64 Scope:Link

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:152397 errors:0 dropped:115 overruns:0 frame:0

TX packets:23768 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:12795709 (12.7 MB) TX bytes:11318103 (11.3 MB)

+ eth0.222 IPv6 67665ACD317A45B0 _appletv-v2._tcp local

+ eth0.222 IPv4 67665ACD317A45B0 _appletv-v2._tcp local

+ eth0.136 IPv6 67665ACD317A45B0 _appletv-v2._tcp local

+ eth0.136 IPv4 67665ACD317A45B0 _appletv-v2._tcp local

+ eth0.12 IPv6 67665ACD317A45B0 _appletv-v2._tcp local

+ eth0.12 IPv4 67665ACD317A45B0 _appletv-v2._tcp local

Should Bonjour work same subnet with these settings?

I am going to have read more about the Interface groups and the Multicast vlan.

Stephen Rodriguez · ‎10-11-2012

On the multicast router do a show IP mroute. You Gould have a S,G with the WLC mgmt interface.

Steve

Sent from Cisco Technical Support iPhone App

HTH,
Steve

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Andrew MacTaggart · ‎10-11-2012

Side note: Called Apple - They say AppleTV doesn't use Bonjour

These network ports are used by Apple TV for communications on your network.

TCP port 123 is used to communicate with a network time server.
TCP port 3689 is used to communicate with iTunes while using the iTunes Library Sharing feature.
UDP port 5353 is used by Apple TV for automatically finding computers with iTunes on your network using Bonjour.
TCP port 80 is used for communicating with podcast servers.
TCP port 80 and 443 are used for basic and secure communications with the iTunes Store via the Internet.
TCP port 53 is used for regular DNS.

These are well-known ports used by Apple products, like iTunes. If you can use all the features of iTunes, these ports are likely already open on your firewall or NAT router. Note: These ports may also used by other services such as YouTube and Flickr.

Andrew MacTaggart · ‎10-11-2012

Active IP Multicast Sources - sending >= 4 kbps

Group: 239.239.5.1, (?)

Source: x.x.x.196 (?)

Rate: 14 pps/37 kbps(1sec), 37 kbps(last 30 secs), 10 kbps(life avg)

Group: 239.239.5.2, (?)

Source: x.x.x.198 (?)

Rate: 16 pps/41 kbps(1sec), 41 kbps(last 0 secs), 10 kbps(life avg)