CISCO-IETF-IPMROUTE-MIB Table View

Table-centric layout grouping table, row, and column objects.

Standard view Table view
Tables
5
Rows
5
Columns
56

cIpMRouteTable

table
.1.3.6.1.4.1.9.10.117.1.1.2 · 1 row entry · 17 columns
Open in standard view 
The (conceptual) table containing multicast routing
information for IP datagrams sent by particular sources to
the IP multicast groups known to this router.
cIpMRouteEntry entry .1.3.6.1.4.1.9.10.117.1.1.2.1
An entry (conceptual row) containing the multicast routing
information for IP datagrams from a particular source and
addressed to a particular IP multicast group address.
Discontinuities in counters in this entry can be…
Indexes
cIpMRouteAddrType cIpMRouteGroup cIpMRouteSource cIpMRouteSourceMask
Column Syntax OID
cIpMRouteAddrType
The type of InetAddress for the IP multicast group
address for which this entry contains multicast
routing information.
INET-ADDRESS-MIBInetAddressType
Textual Convention: INET-ADDRESS-MIBInetAddressType Enumeration
Type Values:
0unknown
1ipv4
2ipv6
3ipv4z
4ipv6z
16dns
25l2vpn
 .1.3.6.1.4.1.9.10.117.1.1.2.1.1
cIpMRouteGroup
The IP multicast group address for which this entry
contains multicast routing information.
OctetString
Constraints:
range: 4-4
range: 20-20
range: 16-16
 .1.3.6.1.4.1.9.10.117.1.1.2.1.2
cIpMRouteSource
The network address which when combined with the
corresponding value of cIpMRouteSourceMask identifies the
sources for which this entry contains multicast routing
information. The address of 0:: indicates shared-tree
en…
OctetString
Constraints:
range: 20-20
range: 16-16
range: 4-4
 .1.3.6.1.4.1.9.10.117.1.1.2.1.3
cIpMRouteSourceMask
The network mask which when combined with the corresponding
value of cIpMRouteSource identifies the sources for which
this entry contains multicast routing information.
INET-ADDRESS-MIBInetAddressPrefixLength
Textual Convention: INET-ADDRESS-MIBInetAddressPrefixLength Unsigned32
Type Constraints:
range: 0..2040
 .1.3.6.1.4.1.9.10.117.1.1.2.1.4
cIpMRouteUpstreamNeighbor
The address of the upstream neighbor (e.g., RPF neighbor)
from which IP datagrams from these sources to this
multicast address are received, or 0:: if the upstream
neighbor is unknown.
OctetString
Constraints:
range: 20-20
range: 16-16
range: 4-4
 .1.3.6.1.4.1.9.10.117.1.1.2.1.5
cIpMRouteInIfIndex
The value of ifIndex for the interface on which IP
datagrams sent by these sources to this multicast address
are received (i.e., RPF Interface).
IF-MIBInterfaceIndexOrZero
Textual Convention: IF-MIBInterfaceIndexOrZero Integer32
Type Constraints:
range: 0..2147483647
 .1.3.6.1.4.1.9.10.117.1.1.2.1.6
cIpMRouteUpTime
The time since the multicast routing information
represented by this entry was learned by the router.
SNMPv2-SMITimeTicks
Textual Convention: SNMPv2-SMITimeTicks Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.2.1.7
cIpMRouteExpiryTime
The minimum amount of time remaining before this entry will
be aged out. The value 0 indicates that the entry is not
subject to aging.
SNMPv2-SMITimeTicks
Textual Convention: SNMPv2-SMITimeTicks Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.2.1.8
cIpMRoutePkts
The number of packets which this router has received from
these sources and addressed to this multicast group
address.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.2.1.9
cIpMRouteDifferentInIfPackets
The number of packets which this router has received from
these sources and addressed to this multicast group address,
which were dropped because they were not received on the
interface indicated by cIpMRouteInIfIndex.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.2.1.10
cIpMRouteOctets
The number of octets contained in IP datagrams which were
received from these sources and addressed to this multicast
group address, and which were forwarded by this router.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.2.1.11
cIpMRouteProtocol
The multicast routing protocol via which this multicast
forwarding entry was learned.
IANA-RTPROTO-MIBIANAipMRouteProtocol
Textual Convention: IANA-RTPROTO-MIBIANAipMRouteProtocol Enumeration
Type Values:
1other
2local
3netmgmt
4dvmrp
5mospf
6pimSparseDense
7cbt
8pimSparseMode
9pimDenseMode
10igmpOnly
11bgmp
12msdp
 .1.3.6.1.4.1.9.10.117.1.1.2.1.12
cIpMRouteRtProto
The routing mechanism via which the route used to find the
upstream or parent interface for this multicast forwarding
entry was learned. Inclusion of values for routing
protocols is not intended to imply that those pro…
IANA-RTPROTO-MIBIANAipRouteProtocol
Textual Convention: IANA-RTPROTO-MIBIANAipRouteProtocol Enumeration
Type Values:
1other
2local
3netmgmt
4icmp
5egp
6ggp
7hello
8rip
9isIs
10esIs
11ciscoIgrp
12bbnSpfIgp
13ospf
14bgp
15idpr
16ciscoEigrp
17dvmrp
18rpl
19dhcp
20ttdp
 .1.3.6.1.4.1.9.10.117.1.1.2.1.13
cIpMRouteRtAddress
The address portion of the route used to find the upstream
or parent interface for this multicast forwarding entry.
OctetString
Constraints:
range: 20-20
range: 16-16
range: 4-4
 .1.3.6.1.4.1.9.10.117.1.1.2.1.14
cIpMRouteRtMask
The mask associated with the route used to find the
upstream or parent interface for this multicast forwarding
entry.
INET-ADDRESS-MIBInetAddressPrefixLength
Textual Convention: INET-ADDRESS-MIBInetAddressPrefixLength Unsigned32
Type Constraints:
range: 0..2040
 .1.3.6.1.4.1.9.10.117.1.1.2.1.15
cIpMRouteRtType
The reason the given route was placed in the (logical)
multicast Routing Information Base (RIB). A value of
unicast means that the route would normally be placed only
in the unicast RIB, but was placed in the multicast…
Enumeration
Enumerated Values:
1unicast
2multicast
 .1.3.6.1.4.1.9.10.117.1.1.2.1.16
cIpMRouteHCOctets
The number of octets contained in IP datagrams which were
received from these sources and addressed to this multicast
group address, and which were forwarded by this router.
This object is a 64-bit version of cIpMRouteO…
SNMPv2-SMICounter64
Textual Convention: SNMPv2-SMICounter64 Unsigned64
Type Constraints:
range: 0..18446744073709551615
 .1.3.6.1.4.1.9.10.117.1.1.2.1.17

cIpMRouteNextHopTable

table
.1.3.6.1.4.1.9.10.117.1.1.3 · 1 row entry · 12 columns
Open in standard view 
The (conceptual) table containing information on the next-
hops on outgoing interfaces for routing IP multicast
datagrams.  Each entry is one of a list of next-hops on
outgoing interfaces for particular sources sending to a
particular multicast group address.
cIpMRouteNextHopEntry entry .1.3.6.1.4.1.9.10.117.1.1.3.1
An entry (conceptual row) in the list of next-hops on
outgoing interfaces to which IP multicast datagrams from
particular sources to a IP multicast group address are
routed. Discontinuities in counters in this entry ca…
Indexes
cIpMRouteNextHopAddrType cIpMRouteNextHopGroup cIpMRouteNextHopSource cIpMRouteNextHopSourceMask cIpMRouteNextHopIfIndex cIpMRouteNextHopAddress
Column Syntax OID
cIpMRouteNextHopAddrType
The type of InetAddress representing the IP
multicast group.
INET-ADDRESS-MIBInetAddressType
Textual Convention: INET-ADDRESS-MIBInetAddressType Enumeration
Type Values:
0unknown
1ipv4
2ipv6
3ipv4z
4ipv6z
16dns
25l2vpn
 .1.3.6.1.4.1.9.10.117.1.1.3.1.1
cIpMRouteNextHopGroup
The IP multicast group for which this entry specifies a
next-hop on an outgoing interface.
OctetString
Constraints:
range: 20-20
range: 16-16
range: 4-4
 .1.3.6.1.4.1.9.10.117.1.1.3.1.2
cIpMRouteNextHopSource
The network address which when combined with the
corresponding value of cIpMRouteNextHopSourceMask
identifies the sources for which this entry specifies a
next-hop on an outgoing interface.
OctetString
Constraints:
range: 4-4
range: 20-20
range: 16-16
 .1.3.6.1.4.1.9.10.117.1.1.3.1.3
cIpMRouteNextHopSourceMask
The network mask which when combined with the corresponding
value of cIpMRouteNextHopSource identifies the sources for
which this entry specifies a next-hop on an outgoing
interface.
INET-ADDRESS-MIBInetAddressPrefixLength
Textual Convention: INET-ADDRESS-MIBInetAddressPrefixLength Unsigned32
Type Constraints:
range: 0..2040
 .1.3.6.1.4.1.9.10.117.1.1.3.1.4
cIpMRouteNextHopIfIndex
The ifIndex value of the interface for the outgoing
interface for this next-hop.
IF-MIBInterfaceIndex
Textual Convention: IF-MIBInterfaceIndex Integer32
Type Constraints:
range: 1..2147483647
 .1.3.6.1.4.1.9.10.117.1.1.3.1.5
cIpMRouteNextHopAddress
The address of the next-hop specific to this entry. For
most interfaces, this is identical to
cIpMRouteNextHopGroup. NBMA interfaces, however, may have
multiple next-hop addresses out a single outgoing
interface.
OctetString
Constraints:
range: 20-20
range: 16-16
range: 4-4
 .1.3.6.1.4.1.9.10.117.1.1.3.1.6
cIpMRouteNextHopState
An indication of whether the outgoing interface and next-
hop represented by this entry is currently being used to
forward IP datagrams. The value 'forwarding' indicates it
is currently being used; the value 'pruned' i…
Enumeration
Enumerated Values:
1pruned
2forwarding
 .1.3.6.1.4.1.9.10.117.1.1.3.1.7
cIpMRouteNextHopUpTime
The time since the multicast routing information
represented by this entry was learned by the router.
SNMPv2-SMITimeTicks
Textual Convention: SNMPv2-SMITimeTicks Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.3.1.8
cIpMRouteNextHopExpiryTime
The minimum amount of time remaining before this entry will
be aged out. If cIpMRouteNextHopState is pruned(1), the
remaining time until the prune expires and the state reverts
to forwarding(2). Otherwise, the remaini…
SNMPv2-SMITimeTicks
Textual Convention: SNMPv2-SMITimeTicks Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.3.1.9
cIpMRouteNextHopClosestHops
The minimum number of hops between this router and any
member of this IP multicast group reached via this next-hop
on this outgoing interface. Any IP multicast datagrams
for the group which have a TTL less than this nu…
Integer32
Constraints:
range: 0-255
 .1.3.6.1.4.1.9.10.117.1.1.3.1.10
cIpMRouteNextHopProtocol
The routing mechanism via which this next-hop was learned.
IANA-RTPROTO-MIBIANAipMRouteProtocol
Textual Convention: IANA-RTPROTO-MIBIANAipMRouteProtocol Enumeration
Type Values:
1other
2local
3netmgmt
4dvmrp
5mospf
6pimSparseDense
7cbt
8pimSparseMode
9pimDenseMode
10igmpOnly
11bgmp
12msdp
 .1.3.6.1.4.1.9.10.117.1.1.3.1.11
cIpMRouteNextHopPkts
The number of packets which have been forwarded using this
route.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.3.1.12

cIpMRouteInterfaceTable

table
.1.3.6.1.4.1.9.10.117.1.1.4 · 1 row entry · 13 columns
Open in standard view 
The (conceptual) table containing multicast routing
information specific to interfaces.
cIpMRouteInterfaceEntry entry .1.3.6.1.4.1.9.10.117.1.1.4.1
An entry (conceptual row) containing the multicast routing
information for a particular interface.
Indexes
cIpMRouteInterfaceIfIndex cIpMRouteInterfaceIPVersion
Column Syntax OID
cIpMRouteInterfaceIfIndex
The ifIndex value of the interface for which this entry
contains information.
IF-MIBInterfaceIndex
Textual Convention: IF-MIBInterfaceIndex Integer32
Type Constraints:
range: 1..2147483647
 .1.3.6.1.4.1.9.10.117.1.1.4.1.1
cIpMRouteInterfaceIPVersion
The IP version of this row.
INET-ADDRESS-MIBInetVersion
Textual Convention: INET-ADDRESS-MIBInetVersion Enumeration
Type Values:
0unknown
1ipv4
2ipv6
 .1.3.6.1.4.1.9.10.117.1.1.4.1.2
cIpMRouteInterfaceTtl
The datagram TTL threshold for the interface. Any IP
multicast datagrams with a TTL less than this threshold will
not be forwarded out the interface. The default value of 0
means all multicast packets are forwarded out …
Integer32r/w
Constraints:
range: 0-255
 .1.3.6.1.4.1.9.10.117.1.1.4.1.3
cIpMRouteInterfaceProtocol
The routing protocol running on this interface.
IANA-RTPROTO-MIBIANAipMRouteProtocol
Textual Convention: IANA-RTPROTO-MIBIANAipMRouteProtocol Enumeration
Type Values:
1other
2local
3netmgmt
4dvmrp
5mospf
6pimSparseDense
7cbt
8pimSparseMode
9pimDenseMode
10igmpOnly
11bgmp
12msdp
 .1.3.6.1.4.1.9.10.117.1.1.4.1.4
cIpMRouteInterfaceRateLimit
The rate-limit, in kilobits per second, of forwarded
multicast traffic on the interface. A rate-limit of 0
indicates that no rate limiting is done.
Integer32r/w
Constraints:
range: 0-429496295
 .1.3.6.1.4.1.9.10.117.1.1.4.1.5
cIpMRouteInterfaceInMcastPkts
The number of multicast packets that have arrived on the
interfaces. This object is similar to ifInPkts in the
Interfaces MIB, except that only multicast packets
are counted.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.4.1.6
cIpMRouteInterfaceOutMcastPkts
The number of multicast packets that have been
sent on the interface.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.4.1.7
cIpMRouteInterfaceInMcastOctets
The number of octets of multicast packets that have arrived
on the interface, including framing characters. This object
is similar to ifInOctets in the Interfaces MIB, except that
only multicast packets are counted.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.4.1.8
cIpMRouteInterfaceOutMcastOctets
The number of octets of multicast packets that have been
sent on the interface.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
 .1.3.6.1.4.1.9.10.117.1.1.4.1.9
cIpMRouteInterfaceHCInMOctets
The number of octets of multicast packets that have arrived
on the interface, including framing characters. This object
is a 64-bit version of cIpMRouteInterfaceInMcastOctets. It
is similar to ifHCInOctets in the Inter…
SNMPv2-SMICounter64
Textual Convention: SNMPv2-SMICounter64 Unsigned64
Type Constraints:
range: 0..18446744073709551615
 .1.3.6.1.4.1.9.10.117.1.1.4.1.10
cIpMRouteInterfaceHCOutMOctets
The number of octets of multicast packets that have been
sent on the interface. This object is a 64-bit version of
cIpMRouteInterfaceOutMcastOctets.
SNMPv2-SMICounter64
Textual Convention: SNMPv2-SMICounter64 Unsigned64
Type Constraints:
range: 0..18446744073709551615
 .1.3.6.1.4.1.9.10.117.1.1.4.1.11
cIpMRouteInterfaceHCInMPkts
The number of multicast packets that have arrived on the
interfaces. This object is a 64-bit version of
cIpMRouteInterfaceInMcastPkts. This object is similar to
ifInPkts in the Interfaces MIB, except that only multica…
SNMPv2-SMICounter64
Textual Convention: SNMPv2-SMICounter64 Unsigned64
Type Constraints:
range: 0..18446744073709551615
 .1.3.6.1.4.1.9.10.117.1.1.4.1.12
cIpMRouteInterfaceHCOutMPkts
The number of multicast packets that have been
sent on the interface. This object is a 64-bit
version of cIpMRouteInterfaceOutMcastPkts.
SNMPv2-SMICounter64
Textual Convention: SNMPv2-SMICounter64 Unsigned64
Type Constraints:
range: 0..18446744073709551615
 .1.3.6.1.4.1.9.10.117.1.1.4.1.13

cIpMRouteBoundaryTable

table
.1.3.6.1.4.1.9.10.117.1.1.5 · 1 row entry · 7 columns
Open in standard view 
The (conceptual) table listing the router's scoped
multicast address boundaries.
cIpMRouteBoundaryEntry entry .1.3.6.1.4.1.9.10.117.1.1.5.1
An entry (conceptual row) in the cIpMRouteBoundaryTable
representing a scoped boundary.
Indexes
cIpMRouteBoundaryScopeId cIpMRouteBoundaryIfIndex cIpMRouteBoundaryAddressType cIpMRouteBoundaryAddress cIpMRouteBoundaryAddressMask
Column Syntax OID
cIpMRouteBoundaryScopeId
The scope value in the Group address to which this boundary
applies. Packets with a destination address in the
address/mask range associated with this scope will not be
forwarded out the interface associated with the
c…
Integer32
Constraints:
range: 0-15
 .1.3.6.1.4.1.9.10.117.1.1.5.1.1
cIpMRouteBoundaryIfIndex
The IfIndex value for the interface to which this boundary
applies. Packets with a destination address in the
associated address/mask range will not be forwarded out this
interface.
IF-MIBInterfaceIndex
Textual Convention: IF-MIBInterfaceIndex Integer32
Type Constraints:
range: 1..2147483647
 .1.3.6.1.4.1.9.10.117.1.1.5.1.2
cIpMRouteBoundaryAddressType
The type of InetAddress representing the
cIpMRouteBoundaryAddress.
INET-ADDRESS-MIBInetAddressType
Textual Convention: INET-ADDRESS-MIBInetAddressType Enumeration
Type Values:
0unknown
1ipv4
2ipv6
3ipv4z
4ipv6z
16dns
25l2vpn
 .1.3.6.1.4.1.9.10.117.1.1.5.1.3
cIpMRouteBoundaryAddress
The group address which when combined with the
corresponding value of cIpMRouteBoundaryAddressMask
identifies the group range for which the scoped boundary
exists.
OctetString
Constraints:
range: 20-20
range: 16-16
range: 4-4
 .1.3.6.1.4.1.9.10.117.1.1.5.1.4
cIpMRouteBoundaryAddressMask
The group address mask which when combined with the
corresponding value of cIpMRouteBoundaryAddress identifies
the group range for which the scoped boundary exists.
INET-ADDRESS-MIBInetAddressPrefixLength
Textual Convention: INET-ADDRESS-MIBInetAddressPrefixLength Unsigned32
Type Constraints:
range: 0..2040
 .1.3.6.1.4.1.9.10.117.1.1.5.1.5
cIpMRouteBoundaryNameString
The textual name associated with the multicast scope. The
value of this object should be suitable for displaying to
end-users, such as when allocating a multicast address in
this scope.
SNMP-FRAMEWORK-MIBSnmpAdminStringr/w
Textual Convention: SNMP-FRAMEWORK-MIBSnmpAdminString OctetString
Type Constraints:
range: 0..255
 .1.3.6.1.4.1.9.10.117.1.1.5.1.6
cIpMRouteBoundaryStatus
The status of this row, by which new entries may be
created, or old entries deleted from this table.
SNMPv2-TCRowStatusr/w
Textual Convention: SNMPv2-TCRowStatus Enumeration
Type Values:
1active
2notInService
3notReady
4createAndGo
5createAndWait
6destroy
 .1.3.6.1.4.1.9.10.117.1.1.5.1.7

cIpMRouteScopeNameTable

table
.1.3.6.1.4.1.9.10.117.1.1.6 · 1 row entry · 7 columns
Open in standard view 
The (conceptual) table listing the multicast scope names.
cIpMRouteScopeNameEntry entry .1.3.6.1.4.1.9.10.117.1.1.6.1
An entry (conceptual row) in the cIpMRouteScopeNameTable
representing a multicast scope name.
Indexes
cIpMRouteScopeNameAddressType cIpMRouteScopeNameAddress cIpMRouteScopeNameAddressMask cIpMRouteScopeNameLanguage
Column Syntax OID
cIpMRouteScopeNameAddressType
The type of InetAddress representing
cIpMRouteScopeNameAddress.
INET-ADDRESS-MIBInetAddressType
Textual Convention: INET-ADDRESS-MIBInetAddressType Enumeration
Type Values:
0unknown
1ipv4
2ipv6
3ipv4z
4ipv6z
16dns
25l2vpn
 .1.3.6.1.4.1.9.10.117.1.1.6.1.1
cIpMRouteScopeNameAddress
The group address which when combined with the
corresponding value of cIpMRouteScopeNameAddressMask
identifies the group range associated with the multicast
scope.
OctetString
Constraints:
range: 20-20
range: 16-16
range: 4-4
 .1.3.6.1.4.1.9.10.117.1.1.6.1.2
cIpMRouteScopeNameAddressMask
The group address mask which when combined with the
corresponding value of cIpMRouteScopeNameAddress identifies
the group range associated with the multicast scope.
INET-ADDRESS-MIBInetAddressPrefixLength
Textual Convention: INET-ADDRESS-MIBInetAddressPrefixLength Unsigned32
Type Constraints:
range: 0..2040
 .1.3.6.1.4.1.9.10.117.1.1.6.1.3
cIpMRouteScopeNameLanguage
The RFC 1766-style language tag associated with the scope
name.
IPMROUTE-STD-MIBLanguageTag
Textual Convention: IPMROUTE-STD-MIBLanguageTag OctetString
Type Constraints:
range: 1..100
 .1.3.6.1.4.1.9.10.117.1.1.6.1.4
cIpMRouteScopeNameString
The textual name associated with the multicast scope. The
value of this object should be suitable for displaying to
end-users, such as when allocating a multicast address in
this scope.
SNMP-FRAMEWORK-MIBSnmpAdminStringr/w
Textual Convention: SNMP-FRAMEWORK-MIBSnmpAdminString OctetString
Type Constraints:
range: 0..255
 .1.3.6.1.4.1.9.10.117.1.1.6.1.5
cIpMRouteScopeNameDefault
If true, indicates a preference that the name in the
following language should be used by applications if no name
is available in a desired language.
SNMPv2-TCTruthValuer/w
Textual Convention: SNMPv2-TCTruthValue Enumeration
Type Values:
1true
2false
 .1.3.6.1.4.1.9.10.117.1.1.6.1.6
cIpMRouteScopeNameStatus
The status of this row, by which new entries may be
created, or old entries deleted from this table.
SNMPv2-TCRowStatusr/w
Textual Convention: SNMPv2-TCRowStatus Enumeration
Type Values:
1active
2notInService
3notReady
4createAndGo
5createAndWait
6destroy
 .1.3.6.1.4.1.9.10.117.1.1.6.1.7