what allows the is-is routing protocol to operate on ipv6 networks?
IPv6 Routing: IS-IS Support for IPv6
This module describes how to configure Integrated Intermediate System-to-Intermediate Organization (IS-IS) for IPv6. IS-IS is an Interior Gateway Protocol (IGP) that advertises link-state information throughout the network to create a moving-picture show of the network topology. IS-IS is an Open Systems Interconnection (OSI) hierarchical routing protocol that designates an intermediate system equally a Level i or Level 2 device. Level 2 devices route betwixt Level i areas to create an intradomain routing courage. Integrated IS-IS uses a single routing algorithm to support several network accost families, such as IPv6, IPv4, and OSI.
- Finding Feature Information
- Information About IPv6 Routing: IS-IS Back up for IPv6
- How to Configure IPv6 Routing: IS-IS Back up for IPv6
- Configuration Examples for IPv6 Routing: IS-IS Support for IPv6
- Additional References
- Feature Information for IPv6 Routing: IS-IS Support for IPv6
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Problems Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a listing of the releases in which each characteristic is supported, see the feature information tabular array.
Use Cisco Characteristic Navigator to find information nearly platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/get/cfn. An account on Cisco.com is not required.
Information About IPv6 Routing: IS-IS Support for IPv6
- IS-IS Enhancements for IPv6
- IS-IS Single-Topology Support for IPv6
- IPv6 IS-IS Local RIB
IS-IS Enhancements for IPv6
IS-IS in IPv6 functions the same and offers many of the same benefits equally IS-IS in IPv4. IPv6 enhancements to IS-IS allow IS-IS to advertise IPv6 prefixes in addition to IPv4 and OSI routes. Extensions to the IS-IS command-line interface (CLI) allow configuration of IPv6-specific parameters. IPv6 IS-IS extends the address families supported by IS-IS to include IPv6, in improver to OSI and IPv4.
IS-IS in IPv6 supports either single-topology fashion or multiple topology mode.
IS-IS Single-Topology Support for IPv6
Unmarried-topology support for IPv6 allows IS-IS for IPv6 to be configured on interfaces along with other network protocols (for example, IPv4 and Connectionless Network Service [CLNS]). All interfaces must be configured with the identical set up of network address families. In improver, all routers in the IS-IS area (for Level i routing) or the domain (for Level 2 routing) must back up the identical set up of network layer accost families on all interfaces.
When single-topology support for IPv6 is being used, either old- or new-fashion TLVs may exist used. Withal, the TLVs used to advertise reachability to IPv6 prefixes apply extended metrics. Cisco routers do not let an interface metric to be set to a value greater than 63 if the configuration is non set up to support only new-style TLVs for IPv4. In single-topology IPv6 style, the configured metric is always the same for both IPv4 and IPv6.
IPv6 IS-IS Local RIB
A router that is running IS-IS IPv6 maintains a local RIB in which it stores all routes to destinations it has learned from its neighbors. At the end of each SPF, IS-IS attempts to install the best (that is, the to the lowest degree-toll) routes to a destination present in the local RIB in the global IPv6 routing table.
How to Configure IPv6 Routing: IS-IS Back up for IPv6
- Configuring Unmarried-Topology IS-IS for IPv6
- Customizing IPv6 IS-IS
- Disabling IPv6 Protocol-Support Consistency Checks
- Disabling IPv4 Subnet Consistency Checks
- Verifying IPv6 IS-IS Configuration and Operation
Configuring Single-Topology IS-IS for IPv6
Configuring IS-IS comprises two activities. The starting time activity creates an IS-IS routing procedure and is performed using protocol-independent IS-IS commands. The second action in configuring IPv6 IS-IS configures the operation of the IS-IS protocol on an interface.
Before configuring the router to run IPv6 IS-IS, globally enable IPv6 using the ipv6 unicast-routing global configuration control.
Note | If y'all are using IS-IS single-topology back up for IPv6, IPv4, or both IPv6 and IPv4, you may configure both IPv6 and IPv4 on an IS-IS interface for Level ane, Level 2, or both Level 1 and Level 2. However, if both IPv6 and IPv4 are configured on the aforementioned interface, they must be running the aforementioned IS-IS level. That is, IPv4 cannot exist configured to run on IS-IS Level i simply on a specified GigabitEthernet or FastEthernet interface while IPv6 is configured to run IS-IS Level 2 but on the same GigabitEthernet or FastEthernet interface. > |
1. enable
2. configure terminal
three. router isis area-tag
4. net network-entity-title
v. get out
half dozen. interface type number
vii. ipv6 address { ipv6-accost / prefix-length | prefix-proper name sub-$.25 / prefix-length
8. ipv6 router isis area-name
DETAILED STEPS
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 | enable Example: Router> enable | Enables privileged EXEC mode.
| ||
Stride two | configure terminal Example: Router# configure terminal | Enters global configuration way. | ||
Step three | router isis area-tag Example: Router(config)# router isis area2 | Enables IS-IS for the specified IS-IS routing process, and enters router configuration fashion. | ||
Step iv | net network-entity-title Example: Router(config-router)# net 49.0001.0000.0000.000c.00 | Configures an IS-IS network entity title (NET) for the routing process.
| ||
Step v | go out Example: Router(config-router)# leave | Exits router configuration mode and enters global configuration manner. | ||
Step 6 | interface type number Example: Router(config)# interface GigabitEthernet 0/0/i | Specifies the interface type and number, and enters interface configuration fashion. | ||
Step 7 | ipv6 address { ipv6-address / prefix-length | prefix-proper name sub-bits / prefix-length Case: Router(config-if)# ipv6 address 2001:DB8::three/64 | Specifies the IPv6 network assigned to the interface and enables IPv6 processing on the interface.
| ||
Stride 8 | ipv6 router isis area-proper name Case: Router(config-if)# ipv6 router isis area2 | Enables the specified IPv6 IS-IS routing process on an interface. |
Customizing IPv6 IS-IS
Perform this task to configure a new administrative distance for IPv6 IS-IS, configure the maximum number of equal-cost paths that IPv6 IS-IS will back up, configure summary prefixes for IPv6 IS-IS, and configure an IS-IS case to advertise the default IPv6 route (::/0). It also explains how to configure the hold-down catamenia between fractional route calculations (PRCs) and how ofttimes Cisco IOS XE software performs the SPF calculation when using multitopology IS-IS.
Y'all tin customize IS-IS multitopology for IPv6 for your network, only yous likely will not need to practise and so. The defaults for this feature are set to meet the requirements of most customers and features. If you change the defaults, refer to the IPv4 configuration guide and the IPv6 command reference to find the advisable syntax.
1. enable
2. configure terminal
three. router isis area-tag
4. address-family ipv6 [ unicast | multicast ]
v. default-information originate [ route-map map-proper noun ]
vi. altitude value
7. maximum-paths number-paths
8. summary-prefix ipv6-prefix prefix-length level-1 | level-1-2 | level-two ]
ix. red china-interval seconds [ initial-wait ] [ secondary-await
10. spf-interval [ level-1 | level-two ] seconds initial-wait ] [ secondary-wait
11. exit
12. interface type number
13. isis ipv6 metric metric-value [ level-ane | level-2 | level-1-2
DETAILED STEPS
Command or Activeness | Purpose | |
---|---|---|
Footstep 1 | enable Example: Router> enable | Enables privileged EXEC mode.
|
Pace 2 | configure terminal Example: Router# configure last | Enters global configuration mode. |
Pace 3 | router isis area-tag Example: Router(config)# router isis area2 | Enables IS-IS for the specified IS-IS routing process, and enters router configuration mode. |
Pace 4 | accost-family ipv6 [ unicast | multicast ] Example: Router(config-router)# address-family unit ipv6 | Specifies the IPv6 accost family, and enters accost family configuration mode.
|
Step v | default-data originate [ route-map map-name ] Case: Router(config-router-af)# default-information originate | (Optional) Injects a default IPv6 route into an IS-IS routing domain.
|
Step 6 | distance value Example: Router(config-router-af)# distance 90 | (Optional) Defines an administrative distance for IPv6 IS-IS routes in the IPv6 routing tabular array.
|
Footstep 7 | maximum-paths number-paths Example: Router(config-router-af)# maximum-paths 3 | (Optional) Defines the maximum number of equal-cost routes that IPv6 IS-IS tin can back up.
|
Step viii | summary-prefix ipv6-prefix prefix-length level-ane | level-ane-2 | level-ii ] Example: Router(config-router-af)# summary-prefix 2001:DB8::/24 | (Optional) Allows a Level 1-2 router to summarize Level 1 prefixes at Level ii, instead of advertising the Level i prefixes directly when the router advertises the summary.
|
Step 9 | prc-interval seconds [ initial-wait ] [ secondary-await Case: Router(config-router-af)# communist china-interval 20 | (Optional) Configures the concord-down period between PRCs for multitopology IS-IS for IPv6. |
Step 10 | spf-interval [ level-1 | level-2 ] seconds initial-wait ] [ secondary-wait Example: Router(config-router-af)# spf-interval 30 | (Optional) Configures how often Cisco IOS XE software performs the SPF adding for multitopology IS-IS for IPv6. |
Stride 11 | go out Example: Router(config-router-af)# exit | Exits address family configuration mode, and returns the router to router configuration mode.
|
Step 12 | interface type number Example: Router(config-router)# interface GigabitEthernet 0/0/ane | Specifies the interface type and number, and enters interface configuration manner. |
Footstep xiii | isis ipv6 metric metric-value [ level-1 | level-2 | level-i-2 Example: Router(config-if)# isis ipv6 metric 20 | (Optional) Configures the value of an multitopology IS-IS for IPv6 metric. |
Disabling IPv6 Protocol-Support Consistency Checks
Perform this task to disable protocol-back up consistency checks in IPv6 single-topology way.
For single-topology IS-IS IPv6, routers must exist configured to run the same set of address families. IS-IS performs consistency checks on hi packets and will reject hello packets that practice not have the same set of configured address families. For instance, a router running IS-IS for both IPv4 and IPv6 will not form an adjacency with a router running IS-IS for IPv4 or IPv6 only. In order to let adjacency to exist formed in mismatched accost-families network, the adjacency-cheque command in IPv6 address family unit configuration mode must be disabled.
Note | Entering the no adjacency-bank check command can adversely affect your network configuration. Enter the no adjacency-check command only when yous are running IPv4 IS-IS on all your routers and you want to add IPv6 IS-IS to your network but you need to maintain all your adjacencies during the transition. When the IPv6 IS-IS configuration is consummate, remove the no adjacency-check command from the configuration. |
ane. enable
two. configure terminal
3. router isis area-tag
four. address-family ipv6 [ unicast | multicast ]
5. no adjacency-check
DETAILED STEPS
Command or Activeness | Purpose | |
---|---|---|
Footstep 1 | enable Case: Device> enable | Enables privileged EXEC mode.
|
Stride ii | configure terminal Instance: Device# configure terminal | Enters global configuration fashion. |
Step 3 | router isis area-tag Example: Device(config)# router isis area2 | Enables IS-IS for the specified IS-IS routing procedure, and enters router configuration fashion. |
Stride 4 | address-family ipv6 [ unicast | multicast ] Example: Device(config-router)# address-family ipv6 | Specifies the IPv6 address family unit, and enters address family configuration manner.
|
Step v | no adjacency-check Example: Device(config-router-af)# no adjacency-check | Disables the IPv6 protocol-support consistency checks performed on hello packets, assuasive IPv6 to be introduced into an IPv4-only network without disrupting existing adjacencies.
|
Disabling IPv4 Subnet Consistency Checks
Perform this task to disable IPv4 subnet consistency checking when forming adjacencies. software historically makes checks on hullo packets to ensure that the IPv4 address is present and has a consistent subnet with the neighbor from which the howdy packets are received. To disable this check, employ the no adjacency-check command in the router configuration fashion. Notwithstanding, if multitopology IS-IS is configured, this check is automatically suppressed, considering multitopology IS-IS requires routers to form an adjacency regardless of whether or not all routers on a LAN support a common protocol.
1. enable
2. configure terminal
three. router isis area-tag
four. no adjacency-check
DETAILED STEPS
Command or Action | Purpose | |
---|---|---|
Step 1 | enable Example: Device> enable | Enables privileged EXEC mode.
|
Step 2 | configure terminal Instance: Device# configure terminal | Enters global configuration manner. |
Step 3 | router isis area-tag Instance: Device(config)# router isis area2 | Enables IS-IS for the specified IS-IS routing procedure, and enters router configuration mode. |
Step 4 | no adjacency-check Example: Device(config-router-af)# no adjacency-check | Disables the IPv6 protocol-support consistency checks performed on hello packets, allowing IPv6 to be introduced into an IPv4-only network without disrupting existing adjacencies.
|
Verifying IPv6 IS-IS Configuration and Functioning
ane. enable
2. show ipv6 protocols [ summary ]
three. bear witness isis [ procedure-tag ] [ ipv6 | * ] topology
iv. testify clns [ process-tag ] neighbors interface-type interface-number ] [ area ] [ item ]
v. show clns area-tag is-neighbors [ type number ] [ detail ]
vi. show isis [ procedure-tag ] database [ level-1 ] [ level-two ] [ l1 ] [ l2 ] [ detail ] [ lspid ]
7. prove isis ipv6 rib [ ipv6-prefix ]
DETAILED STEPS
Command or Activeness | Purpose | |
---|---|---|
Stride 1 | enable Example: Device> enable | Enables privileged EXEC way.
|
Step 2 | show ipv6 protocols [ summary ] Case: Device# bear witness ipv6 protocols | Displays the parameters and current state of the agile IPv6 routing processes. |
Footstep iii | evidence isis [ procedure-tag ] [ ipv6 | * ] topology Example: Device# show isis topology | Displays a listing of all connected routers running IS-IS in all areas. |
Footstep 4 | testify clns [ process-tag ] neighbors interface-type interface-number ] [ expanse ] [ detail ] Example: Device# show clns neighbors detail | Displays end organisation (ES), intermediate system (IS), and multitopology IS-IS (M-ISIS) neighbors. |
Stride v | show clns area-tag is-neighbors [ blazon number ] [ detail ] Example: Device# show clns is-neighbors detail | Displays IS-IS adjacency data for IS-IS neighbors.
|
Footstep 6 | show isis [ process-tag ] database [ level-1 ] [ level-two ] [ l1 ] [ l2 ] [ particular ] [ lspid ] Example: Device# evidence isis database item | Displays the IS-IS link-state database.
|
Step 7 | show isis ipv6 rib [ ipv6-prefix ] Case: Device# prove isis ipv6 rib | Displays the IPv6 local RIB. |
Configuration Examples for IPv6 Routing: IS-IS Back up for IPv6
- Instance: Customizing IPv6 IS-IS
- Instance: Disabling IPv6 Protocol-Back up Consistency Checks
- Example: Configuring IS-IS for IPv6
Example: Customizing IPv6 IS-IS
The following example advertises the IPv6 default road (::/0)--with an origin of GigabitEthernet interface 0/0/1--with all other routes in router updates sent on GigabitEthernet interface 0/0/1. This example also sets an administrative distance for IPv6 IS-IS to 90, defines the maximum number of equal-cost paths that IPv6 IS-IS will support as 3, and configures a summary prefix of 2001:DB8::/24 for IPv6 IS-IS.
router isis address-family ipv6 default-data originate distance 90 maximum-paths 3 summary-prefix 2001:DB8::/24 exit
Example: Disabling IPv6 Protocol-Support Consistency Checks
The following example disables the adjacency-check control to allow a network administrator to configure IPv6 IS-IS on the router without disrupting the existing adjacencies:
router isis address-family ipv6 no adjacency-bank check
Example: Configuring IS-IS for IPv6
In the following example, output data about the parameters and current state of that active IPv6 routing processes is displayed using the evidence ipv6 protocols command:
Device# testify ipv6 protocols IPv6 Routing Protocol is "connected" IPv6 Routing Protocol is "static" IPv6 Routing Protocol is "isis" Interfaces: GigabitEthernet0/0/three GigabitEthernet0/0/i Serial1/0/1 Loopback1 (Passive) Loopback2 (Passive) Loopback3 (Passive) Loopback4 (Passive) Loopback5 (Passive) Redistribution: Redistributing protocol static at level 1 Address Summarization: L2: 2001:DB8:33::/16 advertised with metric 0 L2: 2001:DB8:44::/sixteen advertised with metric twenty L2: 2001:DB8:66::/sixteen advertised with metric x L2: 2001:DB8:77::/16 advertised with metric x
In the following example, output data about all connected routers running IS-IS in all areas is displayed using the show isis topology command:
Device# show isis topology IS-IS paths to level-one routers System Id Metric Next-Hop Interface SNPA 0000.0000.000C 0000.0000.000D 20 0000.0000.00AA Se1/0/one *HDLC* 0000.0000.000F x 0000.0000.000F GE0/0/1 0050.e2e5.d01d 0000.0000.00AA 10 0000.0000.00AA Se1/0/1 *HDLC* IS-IS paths to level-2 routers System Id Metric Next-Hop Interface SNPA 0000.0000.000A 10 0000.0000.000A GE0/0/iii 0010.f68d.f063 0000.0000.000B 20 0000.0000.000A GE0/0/three 0010.f68d.f063 0000.0000.000C -- 0000.0000.000D xxx 0000.0000.000A GE0/0/3 0010.f68d.f063 0000.0000.000E xxx 0000.0000.000A GE0/0/3 0010.f68d.f063
In the following case, output data to confirm that the local router has formed all the necessary IS-IS adjacencies with other IS-IS neighbors is displayed using the prove clns is-neighbors control. To display the IPv6 link-local addresses of the neighbors, specify the detail keyword.
Device# prove clns is-neighbors detail System Id Interface State Type Priority Circuit Id Format 0000.0000.00AA Se1/0/ane Upwardly L1 0 00 Phase V Area Address(es): 49.0001 IPv6 Address(es): FE80::YYYY:D37C:C854:v Uptime: 17:21:38 0000.0000.000F Et0/0/1 Upwards L1 64 0000.0000.000C.02 Phase V Expanse Address(es): 49.0001 IPv6 Address(es): FE80::XXXX:E2FF:FEE5:D01D Uptime: 17:21:41 0000.0000.000A Et0/0/3 Upwards L2 64 0000.0000.000C.01 Stage Five Expanse Address(es): 49.000b IPv6 Address(es): FE80::ZZZZ:F6FF:FE8D:F063 Uptime: 17:22:06
In the post-obit example, detailed output information that displays both end system (ES) and intermediate system (IS) neighbors is displayed using the bear witness clns neighbors command with the particular keyword.
Device# prove clns neighbors detail Arrangement Id Interface SNPA State Holdtime Type Protocol 0000.0000.0007 GE3/3 aa00.0400.6408 UP 26 L1 IS-IS Surface area Address(es): 20 IP Address(es): 172.16.0.42* Uptime: 00:21:49 0000.0C00.0C35 GE3/2 0000.0c00.0c36 Upwardly 91 L1 IS-IS Area Address(es): twenty IP Accost(es): 192.168.0.42* Uptime: 00:21:52 0800.2B16.24EA GE3/three aa00.0400.2d05 Up 27 L1 One thousand-ISIS Surface area Address(es): 20 IP Accost(es): 192.168.0.42* IPv6 Address(es): FE80::2B0:8EFF:FE31:EC57 Uptime: 00:00:27 0800.2B14.060E GE3/ii aa00.0400.9205 Up eight L1 IS-IS Area Accost(es): 20 IP Address(es): 192.168.0.30* Uptime: 00:21:52
In the following example, detailed output data about LSPs received from other routers and the IPv6 prefixes they are advert is displayed using the show isis database command with the detail keyword specified:
Device# show isis database detail IS-IS Level-ane Link State Database LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL 0000.0C00.0C35.00-00 0x0000000C 0x5696 325 0/0/0 Area Address: 47.0004.004D.0001 Expanse Address: 39.0001 Metric: ten IS 0000.0C00.62E6.03 Metric: 0 ES 0000.0C00.0C35 --More than-- 0000.0C00.40AF.00-00* 0x00000009 0x8452 608 1/0/0 Area Address: 47.0004.004D.0001 Topology: IPv4 (0x0) IPv6 (0x2) NLPID: 0xCC 0x8E IP Accost: 172.16.21.49 Metric: ten IS 0800.2B16.24EA.01 Metric: x IS 0000.0C00.62E6.03 Metric: 0 ES 0000.0C00.40AF IPv6 Address: 2001:DB8::/32 Metric: 10 IPv6 (MT-IPv6) 2001:DB8::/64 Metric: 5 IS-Extended cisco.03 Metric: 10 IS-Extended cisco1.03 Metric: x IS (MT-IPv6) cisco.03 IS-IS Level-two Link State Database: LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL 0000.0000.000A.00-00 0x00000059 0x378A 949 0/0/0 Area Accost: 49.000b NLPID: 0x8E IPv6 Address: 2001:DB8:one:i:1:1:i:1 Metric: 10 IPv6 2001:DB8:2:YYYY::/64 Metric: ten IPv6 2001:DB8:3:YYYY::/64 Metric: ten IPv6 2001:DB8:ii:YYYY::/64 Metric: 10 IS-Extended 0000.0000.000A.01 Metric: x IS-Extended 0000.0000.000B.00 Metric: 10 IS-Extended 0000.0000.000C.01 Metric: 0 IPv6 11:ane:YYYY:one:1:1:one:1/128 Metric: 0 IPv6 xi:2:YYYY:one:1:1:one:1/128 Metric: 0 IPv6 11:3:YYYY:one:i:1:1:1/128 Metric: 0 IPv6 11:4:YYYY:ane:1:1:one:1/128 Metric: 0 IPv6 11:five:YYYY:ane:1:1:1:one/128 0000.0000.000A.01-00 0x00000050 0xB0AF 491 0/0/0 Metric: 0 IS-Extended 0000.0000.000A.00 Metric: 0 IS-Extended 0000.0000.000B.00
The post-obit example shows output from the show isis ipv6 rib command. An asterisk (*) indicates prefixes that have been installed in the master IPv6 RIB as IS-IS routes. Following each prefix is a list of all paths in order of preference, with optimal paths listed offset and suboptimal paths listed after optimal paths.
Device# show isis ipv6 rib IS-IS IPv6 process "", local RIB 2001:DB8:88:i::/64 via FE80::210:7BFF:FEC2:ACC9/GigabitEthernet2/0/0, type L2 metric 20 LSP [3/7] via FE80::210:7BFF:FEC2:ACCC/GigabitEthernet2/1/0, type L2 metric xx LSP [three/vii] * 2001:DB8:1357:i::/64 via FE80::202:7DFF:FE1A:9471/GigabitEthernet2/one/0, type L2 metric 10 LSP [4/9] * 2001:DB8:45A::/64 via FE80::210:7BFF:FEC2:ACC9/GigabitEthernet2/0/0, type L1 metric xx LSP [C/6] via FE80::210:7BFF:FEC2:ACCC/GigabitEthernet2/1/0, type L1 metric xx LSP [C/6] via FE80::210:7BFF:FEC2:ACC9/GigabitEthernet2/0/0, type L2 metric 20 LSP [3/7] via FE80::210:7BFF:FEC2:ACCC/GigabitEthernet2/1/0, blazon L2 metric 20 LSP [3/seven]
Boosted References
Related Documents
Related Topic | Document Title |
---|---|
IS-IS commands: complete control syntax, command mode, defaults, control history, usage guidelines, and examples | Cisco IOS IP Routing: ISIS Control Reference |
Overview of Cisco IS-IS conceptual information with links to all the individual IS-IS modules | "Integrated IS-IS Routing Protocol Overview" |
Standards
Standard | Championship |
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No new or modified standards are supported, and back up for existing standards has not been modified. | -- |
RFCs
RFC | Title |
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No new or modified RFCs are supported, and support for existing RFCs has not been modified. | -- |
Technical Assistance
Clarification | Link |
---|---|
The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resource to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Back up and Documentation website requires a Cisco.com user ID and password. | http://www.cisco.com/cisco/spider web/support/index.html |
Characteristic Information for IPv6 Routing: IS-IS Support for IPv6
The post-obit table provides release information nigh the feature or features described in this module. This table lists but the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Employ Cisco Feature Navigator to notice information most platform back up and Cisco software prototype support. To admission Cisco Feature Navigator, get to world wide web.cisco.com/go/cfn. An account on Cisco.com is not required. Characteristic Proper name | Releases | Feature Data |
---|---|---|
IPv6 Routing: IS-IS Back up for IPv6 | Cisco IOS XE Release ii.4 | IPv6 enhancements to IS-IS allow IS-IS to advertise IPv6 prefixes in add-on to IPv4 and OSI routes. The post-obit commands were introduced or modified: accost-family ipv6 (IS-IS) , adjacency-check , default-information originate (IPv6 IS-IS) , distance (IPv6) , ipv6 router isis , isis ipv6 metric , maximum-paths (IPv6) , prc-interval (IPv6) , router isis , prove clns neighbors , prove ipv6 protocols , bear witness isis database , show isis topology , spf-interval , summary-prefix (IPv6 IS-IS) . |
IPv6 ISIS Local RIB | Cisco IOS XE Release two.vi | A router that is running IS-IS IPv6 maintains a local RIB in which it stores all routes to destinations information technology has learned from its neighbors. The following command was introduced: evidence isis ipv6 rib . |
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/xe-16/irs-xe-16-book/ip6-route-isis-xe.html
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