ESR series service routers.ESR-Series. User manual
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Step Description Command Keys
16 Specify the area type (optional). esr(config-ospf-area)# area-type 
<TYPE> [ no-summary ]
<TYPE> – area type:
stub – sets stub value 
(stub area);
no-summary – 
command in conjunction 
with the 'stub' parameter 
forms the 'totallystubby' 
area (only the default 
route is used to transfer 
information outside the 
area).
nssa – sets nssa value 
(NSSA area);
no-summary – 
command in conjunction 
with the 'nssa' 
parameter forms the 
'totallynssa' area (by 
default the route is 
generated as an inter-
place one).
esr(config-ipv6-ospf-area)# area-
type <TYPE> [ no-summary ]
17 Enable the default route generation for 
NSSA area and its advertising as NSSA-
LSA (optional).
esr(config-ospf-area)# default-
information-originate
esr(config-ipv6-ospf-area)# 
default-information-originate
18 Enable the subnet summarization or 
hiding(optional).
esr(config-ospf-area)# summary-
address <ADDR/LEN> { advertise | 
not-advertise }
<ADDR/LEN> – IP address and 
subnet mask, defined as 
AAA.BBB.CCC.DDD/EE where 
each part AAA-DDD takes 
values of [0..255] and EE takes 
values of [1..32];
advertise – if a 
command is specified, 
instead of the specified 
subnets, the total subnet 
will be advertised;
not-advertise – when 
specifying the 
command, the subnets 
included in a subnet 
specified will not be 
advertised.