Transcript IP Multicast, 6/03 © 2003, Cisco Systems, Inc. All rights reserved.

IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
1
Multicast Overview
Thom Bryant
June 2003
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
2
Introduction
• Consistent design recommendation
• Simplification and optimization
CLI and code level
• Quality of Cisco IOS® Software
E2E system testing
Financial test lab
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
3
Cisco Representation
• Internet Technologies Division (ITD) –
Central IOS Engineering
• Chief Technology Office (CTO) – Corporate
Consulting Engineering
• Customer Advocacy (CA) – Advanced
Services
• High Speed Switching Business Unit
(HSSBU) – Financial Test Labs
• Network Management Business Unit
(NMBU) – Network Management
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
4
Brief Review–Protocol Independent
Multicast MDT Types
• Protocol Independent Multicast (PIM) Sparse-Mode
Any version IGMP
SPT or RPT
Unidirectional Trees
MSDP for Inter-domain/Redundancy
• PIM SSM
IGMP V3
Source-Only Trees
Simplest Multicast Model – No RPs or MSDP
Unidirectional Trees
• Bidirectional PIM
Any version IGMP
Bidirectional Trees-Only (*,G) Routing State
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
5
Agenda
• Trends and roadmap
• Addressing and scoping
• Interface Configuration Mode/Auto-RP
Listener
• RP Redundancy
• PIM scalability/convergence
• Summary
• Open discussion
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
6
Integration: Making IP Innovation
Business Ready
INNOVATION
Application Awareness
Integrated Security
Self-Healing
Multicast
Adaptive Routing
Storage Awareness
IP version 6
nBAR
Intrusion Detection
Mobility
Packet Core
Expanded Addressing
IPsec
QoS-Based Routing
Nonstop Forwarding
AToM
Mobile IP
MPLS-VPNs In-Service-Software-Upgrades
Multicast IP
Traffic Engineering Cisco IOS Firewall SAA
NetFlow
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
7
Multicast: Components
Basic Multicast
:
PIM SM, DM, Auto RP, IGMP v2, CGMP
Inter-Domain Multicast
:
MBGP , MSDP, Anycast RP, RGMP, BSR
Multicast VPN
:
MVPN
One-to-Many
:
SSM & IGMP v3
Many-to-Many
:
PIM – Bi-Directional
Reliable Multicast
:
PGM
Multicast v6
:
PIM SM, SSM, MLD v2
M
A
N
A
G
E
M
E
N
T
I
N
T
E
G
R
A
T
I
O
N
Provisioning / Accounting / Monitoring
Access Control / Security
Multicast Automation / Simplification
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
8
Multicast: It Begins and Ends with
Applications
1
IP/TV®
Audio/Video
http://www.cisco.com/warp/public/cc/so/neso/cxne/atsln_an.htm
2
Windows
Media
Audio/Video
http://www.microsoft.com/windows/windowsmedia/serve/multiwp
.asp
3
Real
Audio/Video
http://videocast.nih.gov/McastUpgrade/multicast.html
4
Dialer
5
NetMeeting
http://www.microsoft.com/technet/treeview/default.asp?url=/tech
Conferencing net/prodtechnol/winxppro/proddocs/dialer_conference_overview.
asp
Conferencing
http://www.microsoft.com/technet/treeview/default.asp?url=/tech
net/prodtechnol/win98/reskit/part4/wrkc20.asp
6 HootNHoller
VOIP
http://www.cisco.com/warp/public/cc/so/neso/vvda/hthllr/
7
IPblue
VOIP
http://www.ipblue.com/faq.htm
8
TIBCO
Stock ticker
http://www.tibco.com/resources/solutions/technology_solutions/
messaging.pdf
9
OrbixTalk
Messaging
http://techrepublictk.cnet.com/enterprise/0-6119584-7207723923.html
10
Norton
Ghost
File Transfer
11
Datarunner
File Transfer
IP Multicast, 6/03
http://www.symantec.com/sabu/ghost/ghost_personal/
http://www.targetvision.com/distribu.htm
© 2003, Cisco Systems, Inc. All rights reserved.
9
Finance: Trading Floors
Recent Trends
• Many large financial traders are interested in reducing
Operational Expenses (OpEx) and are increasingly
interested in Hoot ‘n’ Holler for existing IP infrastructure
• Bidirectional PIM is the protocol that enables a scalable
solution, and is going to be deployed in many of these
networks
Prudential was our beachhead and is very happy with the
cost savings
Royal Bank of Canada is also in the process of deploying
Hoot ’n Holler
• Increased interest in PGM for reliable Multicast delivery
• Increased interest in faster convergence and lower
downtime for all business critical multicast services
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
10
IP Multicast Strategy
• Business Strategy
Maintain leadership in the finance market
Increase deployment in enterprise market segment
Drive adoption in the ISP market segment
Facilitate deployment in MXU for new Multicast services
• Technology Strategy
Maintain IP multicast technology leadership
Add hardware acceleration support and achieve consistency
on all key Cisco platforms
Integrate Multicast across different technologies like MPLS,
IPsec, IPv6, Mobile, NetFlow and content
Simplify, automate, and increase deployment of Multicast
Enhance scalability, manageability, and security
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
11
IP Multicast Platform Roadmap Release
Plan (Release 12.0S, 12.2T, and 12.2S)
Targeting Cisco IOS
Software Release
12.3(1)T
Targeting Cisco IOS
Software Release
12.0(26)S
Key Features:
Key Features:
• Multicast v6 - Phase 1 • mVPN support on
GSR
SM, SSM, MLD v2
•Multicast v6 – Phase 1
SM, SSM, MLD v2
• New MFIB for v6
• SSM Mapping
Targeting Cisco IOS
Software Release
12.2(3rd)S
• MBGP support for
mcast v6
• Multicast Netflow
Targeting Cisco IOS
Software Release
12.2(5th)S
Key Features:
Key Features:
• Multicast v6 - Phase 1
SM, SSM, MLD v2
• MSDP Spec 14
compliance
• New MFIB for v6
• Inter-AS for mVPN
• Extranet for mVPN
• SSM Mapping
• SSM Mapping
• Inter-AS for mVPN
• IP-Mroute-STD MIB
• Auto-RP
Enhancements (no
Dense mode fallback)
• New dMFIB for v6
• IP-Mroute-STD MIB
Targeting Cisco IOS
Software Release
12.0(27)S
• Multicast Netflow
Key Features:
• Mcast-v6 Phase 2
• New dMFIB for v6
• Bi-Dir support on
C7600
• PGM Aware VRF
•Auto-RP
Enhancements (no
Dense mode
fallback)
• MSDP Spec 14
compliance
• mVPN MIB
Feb
2003
Mar Apr
2003 2003
IP Multicast, 6/03
May
2003
Jun
2003
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
2003
2003 2003
2003 2003 2003 2004 2004 2004 2004
NB. Confirm target releases with Cisco IOS PM – [email protected]
© 2003, Cisco Systems, Inc. All rights reserved.
May
2004
Jun
2004
Jul
2004
Aug
2004
12
Agenda
• Trends and roadmap
• Addressing and scoping
• Interface Configuration Mode/Auto-RP
Listener
• RP Redundancy
• PIM scalability/convergence
• Summary
• Open discussion
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
13
Address Allocation Considerations
• Current and future size of the organization
• Organizational structure and relations
between Business Units
• Scale of the IP Multicast deployment
• Internal policies on the control and
deployment of network applications
• Scope of the applications
• Security policy
• Readiness for future use of new multicast
delivery methods (ie: Bi-Dir PIM and SSM)
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
14
IP Multicast Address Space
IP v4 multicast addresses assigned by IANA
Start Range
224.0.0.0
224.252.0.0 225.0.0.0
232.0.0.0
233.0.0.0
234.0.0.0
239.0.0.0
-
End Range
224.2.255.255
224.255.255.255
231.255.255.255
232.255.255.255
233.255.255.255
238.255.255.255
239.255.255.255
Description
Assigned
Assigned
RESERVED
Source Specific Multicast Block
GLOP Block
RESERVED
Administratively Scoped Block
Administratively scoped IP Multicast address recommendations from rfc 2365
239.0.0.0
- 239.255.255.255
239.0.0.0
239.192.0.0
239.252.0.0
239.255.0.0
239.255.2.2
- 239.191.255.255 Reserved
[IANA]
- 239.251.255.255 Organization-Local Scope [Meyer,rfc2365]
- 239.254.255.255 Site-Local Scope(reserved)[Meyer,rfc2365]
- 239.255.255.255 Site-Local Scope
[Meyer,rfc2365]
rasadv
[Thaler]
IP Multicast, 6/03
Administratively Scoped
© 2003, Cisco Systems, Inc. All rights reserved.
[IANA,rfc2365]
15
Geographical Scoped Addresses
Example
Byte 4
Byte3
Byte2
Byte1
Notes
239
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Administrative Scope range
RFC2365
239
1
1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Administrative Organization range
RFC2365
239
1
1
0
0
0
0
0
0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Adm Org. Global addresses
239
1
1
0
0
0
0
0
1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Adm. Org. Regional assignment
239
1
1
1
1
1
1
1
0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Adm. Org. Regional assignment
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Adm. Local Range RFC2365
239
255
• Uses three levels of geographical scoping:
Site local
Regional by using the Regional bits
Global
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
16
Geographical and Bandwidth Scoped
Addresses Example
Byte 4
Byte3
Byte2
Byte1
Notes
239
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Administrative Scope range
RFC2365
239
1
1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Administrative Organization range
RFC2365
239
1
1
R
R
R
R
R
R
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Adm. Org. Region expansion
239
1
1
R
R
R
R
R
R
B
B
B
*
*
*
*
*
*
*
*
*
*
*
*
*
Adm. Org. Region/BW expansion
239
255
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Administrative Local range RFC2365
239
255
B
B
B
*
*
*
*
*
*
*
*
*
*
*
*
*
Adm. Local Bandwidth expansion
• Uses three levels of geographical scoping:
Site local
Regional by using the Regional bits
Global
• Use bandwidth bits to define bandwidth scoping in
the network
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
17
Bandwidth Scoping Example
Bandwidth
Bits
Bandwidth
Level
#3rd Octet
range
Access Lists
0
*
*
Unlimited
Bandwidth
0-127
ip access-list standard unlimitedbw
permit 239.0.0.0 0.255.255.255
1
0
*
High
Bandwidth
128-191
ip access-list standard highbw
permit 239.0.128.0 0.255.127.255
1
1
0
Medium
Bandwidth
192-223
1
1
1
Low
Bandwidth
224-255
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
ip access-list standard mediumbw
permit 239.0.192.0 0.255.63.255
ip access-list standard lowbw
permit 239.0.224.0 0.255.31.255
18
Bandwidth Scoping
ip multicast
boundary lowbw
Distribution
Server Farm
Campus
Backbone
Core
To remote users
(DSL/Cable)
ip multicast boundary
mediumbw
ip multicast
boundary highbw
To regional
backbone
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
To branch
offices (T3)
19
Agenda
• Trends and roadmap
• Addressing and scoping
• Interface Configuration Mode/Auto-RP
Listener
• RP Redundancy
• PIM scalability/convergence
• Summary
• Open discussion
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
20
Candidate RP
1.1.1.1
C
A
B
Announce
Announce
Announce
Mapping
Agent
Announce
Announce
Mapping
Agent
D
Announce
Announce
Auto-RP Overview
Announce
Candidate-RP
2.2.2.2
RP-Announcements multicast to the
Cisco Announce (224.0.1.39) group
Announce
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
21
Auto-RP Overview
Candidate RP
1.1.1.1
Mapping
Agent
Mapping
Agent
A
B
C
D
Candidate-RP
2.2.2.2
RP-Discoveries multicast to the
Cisco Discovery (224.0.1.40) group
Discovery
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
22
Simple Auto-RP Configuration
RP/Mapping Agent
A
B
PIM
Sparse Mode
C
RP/Mapping Agent
On each router:
ip multicast-routing
On each interface:
ip pim sparse-dense-mode
D
On routers B and C: ip pim send-rp-announce loopback0 scope 16
ip pim send-rp-discovery loopback0 scope 16
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
23
Configuring an Interface for IP
Multicast
• Interface Mode Configuration Command
Enables multicast forwarding on the interface
Controls the interface’s mode of operation
ip pim sparse-dense-mode
• Interface mode is determined by the Group mode
Dense: interface operates in Dense mode
Sparse: interface operates in Sparse mode
• Sparse-dense-mode has potential issues
• Multicast data flows can be flooded as Dense mode if
the RP information is lost
• Auto-RP has always required sparse-dense-mode –
until now
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
24
New Command: Auto-RP Listener
• Global Command
ip pim autorp listener
Allows Auto-RP to work over Sparse-mode interfaces
• Enables AutoRP functions on router.
AutoRP groups operate only in DM
Router joins 224.0.1.40
Off by default
Future: may change to “On” by default
• No possibility of Dense mode flooding without
multiple failures in network
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
25
Coming Soon to a Router Near You….
• No Dense mode fallback
Default behavior.
No new command required
Use current “Last resort RP=0.0.0.0” approach
Provides limited “disabled group” functionality
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
26
Future Plans
• ‘ip pim autorp mapping-agent’ command
New “clearer” parser command
Helps standardize AutoRP & BSR commands
• Format
ip pim autorp mapping-agent <interface>
scope <ttl>
• No new code required
Same function as old command
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
27
Implementation Summary
ip pim autorp listener
ip pim autorp candidate-rp <interface> scope <ttl>
ip pim autorp mapping-agent <interface> scope <ttl>
ip pim bsr
ip pim bsr
length]
ip pim bsr
ip pim bsr
IP Multicast, 6/03
listener
candidate-bsr [priority <pri>] [hashcandidate-rp <interface> scope <ttl>
border
© 2003, Cisco Systems, Inc. All rights reserved.
28
Agenda
• Trends and roadmap
• Addressing and scoping
• Interface Configuration Mode/Auto-RP
Listener
• RP Redundancy
• PIM scalability/convergence
• Summary
• Open discussion
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
29
RP Redundancy Agenda
• Sparse Mode Redundant RPs
• Bidirectional Redundant RPs
• Unified Redundant RPs
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
30
Goals
• Topology independent RP redundancy
• Unified model for Sparse mode and
Bidirectional RPs
• Simple configuration
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
31
Sparse Mode Anycast RP
Configuration
RP1
MSDP
A
RP2
B
ip pim rp-address 10.0.0.1
ip pim rp-address 10.0.0.1
X
Y
Interface loopback 0
ip address 10.0.0.1 255.255.255.255
Interface loopback 0
ip address 10.0.0.1 255.255.255.255
Interface loopback 1
ip address 10.0.0.2 255.255.255.255
!
ip msdp peer 10.0.0.3 connect-source loopback 1
ip msdp originator-id loopback 1
Interface loopback 1
ip address 10.0.0.3 255.255.255.255
!
ip msdp peer 10.0.0.2 connect-source loopback 1
ip msdp originator-id loopback 1
IP Multicast, 6/03
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32
Topology Dependant RP Redundancy
• Router ‘A’ is the primary
RP, router ‘B’ is failover
Anycast RP
(w w/o) MSDP!!
• ‘FE0’ is primary network,
‘FE1’ is failover
• Modify link metrics on ‘A’
and ‘B’ to force routing
• Anycast-RP just for
failover, not for loadbalancing
A
B
+10
+20
+30
FE0
FE1
• Topology dependant, as
‘B’ can’t be on the path to
‘A’
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
33
Bidirectional Phantom RP on a LAN
RP: 1.1.1.1
e0/0
e1/0
1.1.1.3
e0/0
1.1.1.2
1.1.3.1
e1/0
1.1.2.2
Receiver
Source
core2#show ip mroute 225.1.2.3
core1#show ip pim int e1/0 df
Interface
Ethernet1/0
core1#
RP
1.1.1.1
DF Winner
1.1.3.3
Metric Uptime
0
00:06:49
(*, 225.1.2.3), 00:06:43/00:00:00, RP 1.1.1.1, flags: BC
Bidir-Upstream: Ethernet0/0, RPF nbr 1.1.1.1
Outgoing interface list:
Ethernet1/0, Forward/Sparse, 00:06:43/now
Ethernet0/0, Bidir-Upstream/Sparse, 00:06:43/00:00:00
core2#
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
34
Bidirectional Floating Route Phantom RP
S
P
ip multicast-routing
!
interface Loopback0
ip address 11.0.0.1 255.255.255.255
ip pim sparse-mode
!
router ospf 11
redistribute static subnets
network 10.1.1.0 0.0.0.255 area 0
network 10.1.2.0 0.0.0.255 area 0
!
ip route 1.1.1.1 255.255.255.255
Loopback0
ip pim bidir-enable
ip pim rp-address 1.1.1.1 bidir-grp bidir
IP Multicast, 6/03
RP: 1.1.1.1
© 2003, Cisco Systems, Inc. All rights reserved.
ip multicast-routing
!
interface Loopback0
ip address 11.0.0.2 255.255.255.255
ip pim sparse-mode
!
router ospf 11
redistribute static subnets
network 10.1.1.0 0.0.0.255 area 0
network 10.1.2.0 0.0.0.255 area 0
!
ip route 1.1.1.0 255.255.255.254
Loopback0
ip pim bidir-enable
ip pim rp-address 1.1.1.1 bidir-grp bidir
35
Unified Floating Route Phantom RP
(Netmask Method)
RP: 1.1.1.2
S
P
ip multicast-routing
!
interface Loopback0
ip address 1.1.1.1 255.255.255.252
ip pim sparse-mode
ip ospf network point-to-point
!
router ospf 11
network 1.1.1.0 0.0.0.3 area 0
network 10.1.1.0 0.0.0.255 area 0
network 10.1.2.0 0.0.0.255 area 0
!
ip pim bidir-enable
ip pim rp-address 1.1.1.1 sm-grp
ip pim rp-address 1.1.1.2 bidir-grp bidir
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
ip multicast-routing
!
interface Loopback0
ip address 1.1.1.1 255.255.255.248
ip pim sparse-mode
ip ospf network point-to-point
!
router ospf 11
network 1.1.1.0 0.0.0.7 area 0
network 10.1.1.0 0.0.0.255 area 0
network 10.1.2.0 0.0.0.255 area 0
!
ip pim bidir-enable
ip pim rp-address 1.1.1.1 sm-grp
ip pim rp-address 1.1.1.2 bidir-grp bidir
36
Unified Floating Route Phantom RP
(Conditional Routing Method)
RP: 1.1.1.2
S
P
ip multicast-routing
!
interface Loopback0
ip address 1.1.1.1 255.255.255.252
ip pim sparse-mode
ip ospf network point-to-point
!
router ospf 11
network 1.1.1.0 0.0.0.3 area 0
network 10.1.1.0 0.0.0.255 area 0
network 10.1.2.0 0.0.0.255 area 0
!
ip pim bidir-enable
ip pim rp-address 1.1.1.1 sm-grp
ip pim rp-address 1.1.1.2 bidir-grp bidir
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
ip multicast-routing
!
interface Loopback0
ip address 1.1.1.1 255.255.255.252
ip pim sparse-mode
ip ospf network point-to-point [conditional]
!
router ospf 11
network 1.1.1.0 0.0.0.3 area 0 [conditional]
network 10.1.1.0 0.0.0.255 area 0
network 10.1.2.0 0.0.0.255 area 0
!
ip pim bidir-enable
ip pim rp-address 1.1.1.1 sm-grp
ip pim rp-address 1.1.1.2 bidir-grp bidir
37
Agenda
• Trends and roadmap
• Addressing and scoping
• Interface Configuration Mode/Auto-RP
Listener
• RP Redundancy
• PIM scalability/convergence
• Summary
• Open discussion
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
38
Multicast Sub-Second Convergence
Seconds
Multicast
convergence
Time
100
75
Multicast
Sub-Second
Convergence
Time
50
25
Multicast Sub-Second
Convergence provides
almost instantaneous
recovery of Multicast
paths following unicast
routing recovery
Platforms
12000
0
10000
Previous
Environment
IP Multicast, 6/03
Sub-Second
Convergenc
e
© 2003, Cisco Systems, Inc. All rights reserved.
7500
6500
39
Multicast Scalability - Issues
• Maintaining large amount of state
• Dealing with PIM protocol updates
• Periodic updates to refresh state
• Timers to maintain state
Passive timers
Managed timers
Active timers (timer wheel)
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Multicast Sub-Second Convergence
• Enhancement: deliver sub-second convergence and
world-class reliability for business-critical multicast
applications.
• Problem: reduce the time it takes for Multicast
routing to converge after a failure in a large network
• Solution
1. Make Triggered RPF Checks
2. Enhance Timer Management
3. Enhance IGMP Capabilities
4. Make Designated Router Failover in 300 msec
5. Decrease Join/Prune Forwarding Handle Times
6. Make Join/Prune Aggregation
IP Multicast, 6/03
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Multicast Sub-Second Convergence:
CSCdw13674 PIM scalability & convergence
• Join/Prune aggregation
Used to send one PIM packet per (S,G) or (*,G) entry after a
Rendezvous Point failover
These are now aggregated into a few PIM packets with
multiple entries
• New PIM HELLO option
New option advertises the hold time in milliseconds
Enables sub-second failover of Designated Router (Cisco
proprietary)
• Triggered RPF checks
Follows unicast convergence
After unicast is converged, it causes an instantaneous start
of RPF checks (previous default was five seconds)
ip pim query-interval <interval> [msec]
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Agenda
• Trends and roadmap
• Addressing and scoping
• Interface Configuration Mode/Auto-RP
Listener
• RP Redundancy
• PIM scalability/convergence
• Summary
• Open discussion
IP Multicast, 6/03
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Updated Design Guidance - Summary
• Interface Config Mode
PIM Sparse Mode
Auto-RP Listener
• RP Mapping and Discovery
Static for Deterministic/Change-averse Networks
Auto-RP when a dynamic protocol is needed
• Administrative Scoping
Static
IP Multicast Boundary Filter-Autorp
• RP Placement
Core by default
• RPT or SPT
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Updated Design/Reference
Documents
• Design Guidelines Update
• Bidirectional Design Guide
• Guidelines for Enterprise IP Multicast
Address Allocation
• E2E Test Results
• Multicast VPN Design Guide
• Security (coming soon)
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Possible Additional Topics
• Multicast VPN
• Multicast Netflow
• Multicast v6
• Reliable Multicast - PGM
• Multicast Security
• Multicast Management and tools
• E2E System Test Results for 12.1(13)
• Financial Test Lab Enhancements
IP Multicast, 6/03
© 2003, Cisco Systems, Inc. All rights reserved.
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IP Multicast, 6/03
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